In terms of ion charge, we notice that the charge of elements increases by one as
you move from left to right. For example, Sodium, Na, has a plus 1+ charge in solution and
Calcium, Ca, has a 2+ charge. On the opposite side of the table, the elements are more likely to
gain and electron and have a negative charge than lose an electron and have a positive charge in
solution, so starting from the noble gases and moving towards the center, the elements tend to
gain a negative charge for each column. The halides, which include Chlorine, Fluorine, Bromine
and Iodine all tend to have a 1- charge, while Oxygen has a 2- and nitrogen, a 3-. The transition
metals in the middle of the table tend to form positive charges of different values, known as
oxidation states. These do not necessarily follow left to right trend.
Solution
In terms of ion charge, we notice that the charge of elements increases by one as
you move from left to right. For example, Sodium, Na, has a plus 1+ charge in solution and
Calcium, Ca, has a 2+ charge. On the opposite side of the table, the elements are more likely to
gain and electron and have a negative charge than lose an electron and have a positive charge in
solution, so starting from the noble gases and moving towards the center, the elements tend to
gain a negative charge for each column. The halides, which include Chlorine, Fluorine, Bromine
and Iodine all tend to have a 1- charge, while Oxygen has a 2- and nitrogen, a 3-. The transition
metals in the middle of the table tend to form positive charges of different values, known as
oxidation states. These do not necessarily follow left to right trend..
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction.
Here you can learn about the periodic table which is most important for chemistry subject. In this presentation, you can know about metals, non-metals, group1-17, blocks s,p,d,f and periods in the periodic table.
If you need help for chemistry subjects you can visit http://www.selectmytutor.co.uk/subject-chemistry.html
Corrosion is a natural process that deteriorates materials, commonly metals, due to chemical or electrochemical reactions with their environment. It's a significant concern across various industries, including infrastructure, manufacturing, and transportation. The effects of corrosion can range from minor aesthetic damage to catastrophic structural failure, leading to enormous economic costs and safety hazards.
Several factors influence corrosion, including environmental conditions such as moisture, temperature, pH levels, and the presence of corrosive agents like oxygen, sulfur compounds, and salts. Additionally, the material's composition and microstructure play crucial roles in its susceptibility to corrosion.
To mitigate corrosion and prolong the lifespan of materials, various protection methods are employed:
Barrier Protection: This involves applying coatings or barriers to physically isolate the material from its environment. Common barrier materials include paints, polymer coatings, and enamels. These coatings create a protective layer that prevents corrosive agents from reaching the underlying material.
Cathodic Protection: This method involves making the metal to be protected the cathode of an electrochemical cell, thus reducing its corrosion rate. Cathodic protection can be achieved through sacrificial anodes, where a more reactive metal (such as zinc or magnesium) is connected to the metal to be protected, sacrificing itself to protect the base metal.
Anodic Protection: Conversely, anodic protection works by polarizing the metal to be protected to make it the anode in an electrochemical cell. This method is suitable for metals that exhibit passivity, such as stainless steel. By maintaining the metal in its passive state, its corrosion rate is significantly reduced.
Inhibitors: Corrosion inhibitors are chemicals that are added to the environment surrounding the metal to reduce its corrosion rate. Inhibitors work by adsorbing onto the metal surface, forming a protective layer that blocks corrosive agents from reaching the metal. Common inhibitors include organic compounds, chromates, and phosphates.
Alloying: Alloying involves mixing the base metal with other elements to improve its corrosion resistance. For example, stainless steel contains chromium, which forms a passive oxide layer on the surface, protecting the underlying metal from corrosion.
Design Modification: Sometimes, corrosion can be mitigated through design modifications that minimize exposure to corrosive environments or improve drainage to prevent the accumulation of moisture.
Each protection method has its advantages and limitations, and the choice of method depends on factors such as the material, the environment, cost considerations, and the required durability. In many cases, a combination of protection methods may be employed to provide optimal corrosion resistance.
Overall, effective corrosion protection is essential for maintaining the integrity and longevity of
A reaction intermediate or an intermediate is a molecular entity that is formed from the reactants (or preceding intermediates) and reacts further to give the directly observed products of a chemical reaction.
Here you can learn about the periodic table which is most important for chemistry subject. In this presentation, you can know about metals, non-metals, group1-17, blocks s,p,d,f and periods in the periodic table.
If you need help for chemistry subjects you can visit http://www.selectmytutor.co.uk/subject-chemistry.html
Corrosion is a natural process that deteriorates materials, commonly metals, due to chemical or electrochemical reactions with their environment. It's a significant concern across various industries, including infrastructure, manufacturing, and transportation. The effects of corrosion can range from minor aesthetic damage to catastrophic structural failure, leading to enormous economic costs and safety hazards.
Several factors influence corrosion, including environmental conditions such as moisture, temperature, pH levels, and the presence of corrosive agents like oxygen, sulfur compounds, and salts. Additionally, the material's composition and microstructure play crucial roles in its susceptibility to corrosion.
To mitigate corrosion and prolong the lifespan of materials, various protection methods are employed:
Barrier Protection: This involves applying coatings or barriers to physically isolate the material from its environment. Common barrier materials include paints, polymer coatings, and enamels. These coatings create a protective layer that prevents corrosive agents from reaching the underlying material.
Cathodic Protection: This method involves making the metal to be protected the cathode of an electrochemical cell, thus reducing its corrosion rate. Cathodic protection can be achieved through sacrificial anodes, where a more reactive metal (such as zinc or magnesium) is connected to the metal to be protected, sacrificing itself to protect the base metal.
Anodic Protection: Conversely, anodic protection works by polarizing the metal to be protected to make it the anode in an electrochemical cell. This method is suitable for metals that exhibit passivity, such as stainless steel. By maintaining the metal in its passive state, its corrosion rate is significantly reduced.
Inhibitors: Corrosion inhibitors are chemicals that are added to the environment surrounding the metal to reduce its corrosion rate. Inhibitors work by adsorbing onto the metal surface, forming a protective layer that blocks corrosive agents from reaching the metal. Common inhibitors include organic compounds, chromates, and phosphates.
Alloying: Alloying involves mixing the base metal with other elements to improve its corrosion resistance. For example, stainless steel contains chromium, which forms a passive oxide layer on the surface, protecting the underlying metal from corrosion.
Design Modification: Sometimes, corrosion can be mitigated through design modifications that minimize exposure to corrosive environments or improve drainage to prevent the accumulation of moisture.
Each protection method has its advantages and limitations, and the choice of method depends on factors such as the material, the environment, cost considerations, and the required durability. In many cases, a combination of protection methods may be employed to provide optimal corrosion resistance.
Overall, effective corrosion protection is essential for maintaining the integrity and longevity of
# Imports# Include your imports here, if any are used. import.pdfgulshan16175gs
# Imports
# Include your imports here, if any are used.
import math
import random
import copy
import Queue
from collections import deque
# Section 1: N-Queens
# N^2 choose N
def num_placements_all(n):
return math.factorial(n * n) / (math.factorial(n) * math.factorial((n * n) - n))
#N^N
def num_placements_one_per_row(n):
return n ** n
def n_queens_valid(board):
# set() will merge any row with the same column number
# hence if there are conflicts the length of the set will
# be smaller than the actual list
if len(set(board)) < len(board):
return False
# check if each pair of queen is on a diagonal
for i in range(len(board)) :
for j in range(i+1,len(board)) :
if j-i == abs(board[i]-board[j]) :
return False
# return true if every piece is in valid spot
return True
def n_queens_solutions(n):
for i in range(n):
for solution in n_queens_helper(n, [i]):
yield solution
def n_queens_helper(n, board):
if n_queens_valid(board):
if len(board) == n:
yield board
else:
#iterate through all col not added so far
for i in [col for col in range(n) if col not in board]:
#do a quick check if the piece we\'re adding is not directly below
#nor diagonal to the last piece - faster than n_queens_valid
if(i !=board[-1] and i !=board[-1]+1 and i!=board[-1]-1):
newBoard = list(board);
newBoard.append(i);
for solution in n_queens_helper(n, newBoard):
if solution:
yield solution
# Section 2: Lights Out
class LightsOutPuzzle(object):
def __init__(self, board):
self.board = board
self.rLength = len(board)-1
self.cLength = len(board[0])-1
def get_board(self):
#so we don\'t edit the internal representation by mistake on
#the outside
return list(self.board)
def perform_move(self, row, col):
self.board[row][col] = not self.board[row][col]
#bounds checking
if row - 1 >= 0:
self.board[row - 1][col] = not self.board[row - 1][col]
if row + 1 <= self.rLength :
self.board[row + 1][col] = not self.board[row + 1][col]
if col - 1 >= 0:
self.board[row][col - 1] = not self.board[row][col - 1]
if col + 1 <= self.cLength :
self.board[row][col + 1] = not self.board[row][col + 1]
def scramble(self):
for row in range(self.rLength+1):
for col in range(self.cLength+1):
if random.random() < 0.5:
self.perform_move(row, col)
def is_solved(self):
return not any([i for row in self.board for i in row])
def copy(self):
return copy.deepcopy(self)
def successors(self):
for row in range(self.rLength+1):
for col in range(self.cLength+1):
newBoard = self.copy()
newBoard.perform_move(row, col)
yield ((row, col), newBoard)
def find_solution(self):
q = Queue.Queue()
q.put(self)
explored = set()
parent = {}
parent[self] = None
moves = {}
moves[self] = None
solution = []
while not q.empty() :
board = q.get()
explored.add(board.toTup());
if board.is_solved():
node = board
while not parent[node] == None:
solution.append(tuple(moves[node]))
node = parent[node]
return list(reversed(solution))
else :
for move, nextBoard in board.successors() :
if nextBoard.toTup() not in explored :
q.put(nextBoard)
moves[nextBoard] = m.
The OMe is a strong electron withdrawing group an.pdfgulshan16175gs
The OMe is a strong electron withdrawing group and the OSiMe3 is a good electron
donating group. Together they provide good regioselectivity because they make their Cs more
reactive to the nucleophile and electrophile respectively of the dienophile. Also the OSiMe3 is a
large substituent and can use steric hinderance to direct the regioselectivity.
Solution
The OMe is a strong electron withdrawing group and the OSiMe3 is a good electron
donating group. Together they provide good regioselectivity because they make their Cs more
reactive to the nucleophile and electrophile respectively of the dienophile. Also the OSiMe3 is a
large substituent and can use steric hinderance to direct the regioselectivity..
O bears three lone pairs and is bound to a H, thu.pdfgulshan16175gs
O bears three lone pairs and is bound to a H, thus it is sp3-hybrized.
Solution
O bears three lone pairs and is bound to a H, thus it is sp3-hybrized..
Here are four characteristics of acid a) A char.pdfgulshan16175gs
Here are four characteristics of acid: a) A characteristic sour taste b) ability to
change the color of litmus paper from blue to red c) react with certain metals to produce gaseous
H2 d) react with bases to form a salt and water
Solution
Here are four characteristics of acid: a) A characteristic sour taste b) ability to
change the color of litmus paper from blue to red c) react with certain metals to produce gaseous
H2 d) react with bases to form a salt and water.
You can use the below function for linear interpolation i.e.#inclu.pdfgulshan16175gs
You can use the below function for linear interpolation i.e.
#include
int NearestIndex( double value, double *x, int len )
{
double dist;
int index;
int i;
index = -1;
dist = Double_Max;
for ( i = 0; i < len; i++ ) {
double newDist = value - x[i];
if ( newDist > 0 && newDist < dist ) {
dist = newDist;
index = i;
}
}
return index;
}
void linearinterpolation(double *x, int x_tem, double *y, double *xx, int xx_tem, double *yy)
{
double da, db, *slp, *inter;
int i, Envectorindice;
slp=(double *)calloc(x_tem,sizeof(double));
inter=(double *)calloc(x_tem,sizeof(double));
for(i = 0; i < x_tem; i++){
if(i
Solution
You can use the below function for linear interpolation i.e.
#include
int NearestIndex( double value, double *x, int len )
{
double dist;
int index;
int i;
index = -1;
dist = Double_Max;
for ( i = 0; i < len; i++ ) {
double newDist = value - x[i];
if ( newDist > 0 && newDist < dist ) {
dist = newDist;
index = i;
}
}
return index;
}
void linearinterpolation(double *x, int x_tem, double *y, double *xx, int xx_tem, double *yy)
{
double da, db, *slp, *inter;
int i, Envectorindice;
slp=(double *)calloc(x_tem,sizeof(double));
inter=(double *)calloc(x_tem,sizeof(double));
for(i = 0; i < x_tem; i++){
if(i.
These are the following tool to build a data model for an applicatio.pdfgulshan16175gs
These are the following tool to build a data model for an application :
PowerDesigner
PowerDesigner is arguably the industry’s leading data modelling tool. Its features include: fully
integrated models, different modelling techniques that cater to both an IT-centric audience and
non IT-centric. It also supports a powerful metadata repository and various output formats. It has
a nice and polished user interface with easily readable help documentation aiding the user to
quickly solve ad hoc problems.
ER/Studio
ER/Studio is an intuitive data modelling tool that supports single and multi-platform
environments, with native integration for big data platforms such as – MongoDB and Hadoop
Hive. It can forward and reverse engineer models, includes a compare and merge function and is
able to create reports in various formats (XML, PNG, JPEG). Built-in features automate routine
tasks and supports the popular database platforms. ER/Studio is a great tool that that is easy to
start working with due to its intuitive design and good user support.
Sparx Enterprise Architect
Enterprise Architect is a feature rich data modelling tool that prides itself on being the cost-
efficient option. It helps business users build robust and maintainable systems quickly and can
easily scale to accommodate large teams collaborating on shared projects. Enterprise Architect
also has the capability of running a dynamic model simulations to verify the correctness of
models and provide better understanding of how specific business systems operate.
Oracle SQL Developer Data Modeler
Oracle data modeller is a free graphical tool to help business users with data modelling tasks.
This tool is robust, offering features and utilities centred around productivity. This includes
easily accessible report tool, DDL preview capabilities, built in quality check tool and a
sophisticated search engine.
CA ERwin
ERwin is one of the leading data modelling solutions that provides a simple, polished user
interface for a complex data environment. This solution provides business agility – models and
metadata can be managed in a common repository to ensure consistency and security. ERwin
supports high customisation and automation allowing macro language, custom datatypes, APIs
and much more. It also has an extensive user community enabling consumers to share knowledge
and expertise.
IBM - InfoSphere Data Architect
InfoSphere is an innovative data modelling tool that runs on an open-source platform – Eclipse.
Infopshere focuses on three key areas: efficiency, simplicity and integration. This tools helps
business users create logical and physical data model diagrams which can be used for a variety of
applications and systems. This end-to-end solution can be used to create, deploy and update data
models in a quick and efficient manner. It also provides easy integration with other related IBM
products.
Solution
These are the following tool to build a data model for an application :
PowerDesigner
PowerDesi.
Water is a good solvent due to its polarity. The oxygen atom in wate.pdfgulshan16175gs
Water is a good solvent due to its polarity. The oxygen atom in water attracts the electrons more
strongly than the hydrogen atoms. Hence the molecule has partial positive and partial negative
ends.
This allows water molecules to seperate polar solute molecules.
When a solute is dissolved in water, the solvent molecules surround the solute molecule. The
relative small size of water molecules enable many of them to surround one solute molecule.
Ionic substances dissociate to charged ions while covalent substances which are polar have
charged ends. This allows for water (a polar solvent) to easily dissolve such substances. Hence
ionic substance and polar covalent substances dissolve easily in water.
Solution
Water is a good solvent due to its polarity. The oxygen atom in water attracts the electrons more
strongly than the hydrogen atoms. Hence the molecule has partial positive and partial negative
ends.
This allows water molecules to seperate polar solute molecules.
When a solute is dissolved in water, the solvent molecules surround the solute molecule. The
relative small size of water molecules enable many of them to surround one solute molecule.
Ionic substances dissociate to charged ions while covalent substances which are polar have
charged ends. This allows for water (a polar solvent) to easily dissolve such substances. Hence
ionic substance and polar covalent substances dissolve easily in water..
V. The two types of larvae found in the life cycle of Diphyllobothri.pdfgulshan16175gs
V. The two types of larvae found in the life cycle of Diphyllobothrium spp are
1. Procercoid larva (tailed larva that develop in the body cavity of copepod)
2. Plerocercoid larvae (sparganum): occurs in the muscles of the fishes
VI The three types of larvae found in the life cycle of trematodes are:
1. Miracidium ( released from the egg)
2. Sporocyst ( forms inside the snail first intermediate host)
3. Redia ( also forms inside snail first intermediate host)
Solution
V. The two types of larvae found in the life cycle of Diphyllobothrium spp are
1. Procercoid larva (tailed larva that develop in the body cavity of copepod)
2. Plerocercoid larvae (sparganum): occurs in the muscles of the fishes
VI The three types of larvae found in the life cycle of trematodes are:
1. Miracidium ( released from the egg)
2. Sporocyst ( forms inside the snail first intermediate host)
3. Redia ( also forms inside snail first intermediate host).
The voltmeter reading indicates that Zn is the negative electrode an.pdfgulshan16175gs
The voltmeter reading indicates that Zn is the negative electrode and Fe is the positive electrode.
Current flows from Fe to Zn.
Zn is the anode (negative electrode where oxidation takes place)
Fe is the cathode (positive electrode where reduction takes place)
Electrons flow from Zn to Fe (opposite to current direction)
Zn is more active (Zn is oxidized more easily and electrons are produced at the Zn electrode)
Solution
The voltmeter reading indicates that Zn is the negative electrode and Fe is the positive electrode.
Current flows from Fe to Zn.
Zn is the anode (negative electrode where oxidation takes place)
Fe is the cathode (positive electrode where reduction takes place)
Electrons flow from Zn to Fe (opposite to current direction)
Zn is more active (Zn is oxidized more easily and electrons are produced at the Zn electrode).
The foreign exchange market facilitates the exchange of Currencies. .pdfgulshan16175gs
The foreign exchange market facilitates the exchange of Currencies. it facilitates the
international investment and capital flows.
Solution
The foreign exchange market facilitates the exchange of Currencies. it facilitates the
international investment and capital flows..
bonde order of NO in nitrate 1.33 in nitrite is 1.pdfgulshan16175gs
bonde order of NO in nitrate 1.33 in nitrite is 1.5 in NO+ is 3.0 in NO- is 2.0 j. NO+
> NO- > nitrite > nitrate is correct.
Solution
bonde order of NO in nitrate 1.33 in nitrite is 1.5 in NO+ is 3.0 in NO- is 2.0 j. NO+
> NO- > nitrite > nitrate is correct..
mean of sampling distribution = mean of the population from which th.pdfgulshan16175gs
mean of sampling distribution = mean of the population from which the sample is taken
Solution
mean of sampling distribution = mean of the population from which the sample is taken.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
In terms of ion charge, we notice that the charge.pdf
1. In terms of ion charge, we notice that the charge of elements increases by one as
you move from left to right. For example, Sodium, Na, has a plus 1+ charge in solution and
Calcium, Ca, has a 2+ charge. On the opposite side of the table, the elements are more likely to
gain and electron and have a negative charge than lose an electron and have a positive charge in
solution, so starting from the noble gases and moving towards the center, the elements tend to
gain a negative charge for each column. The halides, which include Chlorine, Fluorine, Bromine
and Iodine all tend to have a 1- charge, while Oxygen has a 2- and nitrogen, a 3-. The transition
metals in the middle of the table tend to form positive charges of different values, known as
oxidation states. These do not necessarily follow left to right trend.
Solution
In terms of ion charge, we notice that the charge of elements increases by one as
you move from left to right. For example, Sodium, Na, has a plus 1+ charge in solution and
Calcium, Ca, has a 2+ charge. On the opposite side of the table, the elements are more likely to
gain and electron and have a negative charge than lose an electron and have a positive charge in
solution, so starting from the noble gases and moving towards the center, the elements tend to
gain a negative charge for each column. The halides, which include Chlorine, Fluorine, Bromine
and Iodine all tend to have a 1- charge, while Oxygen has a 2- and nitrogen, a 3-. The transition
metals in the middle of the table tend to form positive charges of different values, known as
oxidation states. These do not necessarily follow left to right trend.
