Child Protection Rapid Assessment Data Analysis TemplateANUMBA JOSEPH UCHE
The content of this CPRA Analysis template formed the basis for developing the detailed and official report on Child Protection Issues and Concerns for Atani community,
Ogbaru LGA, Anambra State
https://www.deped.gov.ph/wp-content/uploads/2019/01/General-Chemistry-1-and-2.pdf
General Chemistry
GenChem
STEM
Science, Technology, Engineering, and Mathematics
K to 12 Senior High School STEM Specialized Subject – General Chemistry 1 and 2
Quarter 1 – General Chemistry 1
Matter and Its Properties
Measurements
Atoms, Molecules and Ions
Stoichiometry
Percent Composition and Chemical Formulas
Chemical reactions and chemical equations
Mass Relationships in Chemical Reactions
Gases
Dalton’s Law of partial pressures
Gas stoichiometry
Kinetic molecular theory of gases
Quarter 2 – General Chemistry 1
Electronic Structure of Atoms
Electronic Structure and Periodicity
Chemical Bonding
Organic compounds
Quarter 3 – General Chemistry 2
Intermolecular Forces and Liquids and Solids
Physical Properties of Solutions
Thermochemistry
Chemical Kinetics
Quarter 4 – General Chemistry 2
Chemical Thermodynamics
Chemical Equilibrium
Acid-Base Equilibria and Salt Equilibria
Electrochemistry
Chapter 4 Problems1. Which of these compounds is a strong elec.docxketurahhazelhurst
Chapter 4 Problems
1.
Which of these compounds is a strong electrolyte?
A.
H2O
B.
O2
C.
H2SO4
D.
C6H12O6 (glucose)
E.
CH3COOH (acetic acid)
2. Which of these compounds is a nonelectrolyte?
A.
NaF
B.
HNO3
C.
CH3COOH (acetic acid)
D.
NaOH
E.
C6H12O6 (glucose)
3. Based on the solubility rules, which one of these compounds should be insoluble in water?
A.
NaCl
B.
MgBr2
C.
FeCl2
D.
AgBr
E.
ZnCl2
4. Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq) is mixed with a solution containing 0.1 g of KI(aq)/100 mL?
A.
KNO3 will precipitate; Pb2+ and I- are spectator ions.
B.
No precipitate will form.
C.
Pb(NO3)2 will precipitate; K+ and I- are spectator ions.
D.
PbI2 will precipitate; K+ and NO3- are spectator ions.
E.
Pb2+ and I- are spectator ions, and PbI2 will precipitate.
5. Give the oxidation # for the following atoms:
a. N in NaNO3 _________
b. Mn in KMnO4 _________
c. Cl in ClO3- _________
6. Which of these equations does not represent an oxidation-reduction reaction?
A.
3Al + 6HCl ( 3H2 + AlCl3
B.
2H2O ( 2H2 + O2
C.
2NaCl + Pb(NO3)2 ( PbCl2 + 3NaNO3
D.
2NaI + Br2 ( 2NaBr + I2
E.
Cu(NO3)2 + Zn ( Zn(NO3)2 + Cu
7. What element is oxidized in the chemical reaction
NiO2 + Cd + 2H2O ( Ni(OH)2 + Cd(OH)2?
A.
Ni
B.
Cd
C.
O
D.
H
E.
This is not a redox reaction.
8. Which of these chemical equations describes a precipitation reaction?
A.
2H2(g) + O2(g) ( 2H2O(l)
B.
CaBr2(aq) + H2SO4(aq) ( CaSO4(s) + 2HBr(g)
C.
2KNO3(s) ( 2KNO2(s) + O2(g)
D.
2KBr(aq) + Cl2(g) ( 2KCl(aq) + Br2(l)
E.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
9.
The common constituent in all acid solutions is
A.
H2.
B.
H+.
C.
OH-.
D.
H2SO4.
E.
Cl-.
10. Which of these chemical equations describes an acid-base neutralization reaction?
A.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
B.
SO2(g) + H2O(l) ( H2SO3(g)
C.
LiOH(aq) + HNO3(aq) ( LiNO3(aq) + H2O(l)
D.
2KBr(aq) + Cl2(g) ( 2KCl(aq) + Br2(l)
E.
CaBr2(aq) + H2SO4(aq) ( CaSO4(s) + 2HBr(g)
11. Which of these chemical equations describes a combustion reaction?
A.
2C2H6(g) + 7O2(g) ( 4CO2(g) + 6H2O(l)
B.
LiOH(aq) + HNO3(aq) ( LiNO3(aq) + H2O(l)
C.
N2(g) + 3H2(g) ( 2NH3(g)
D.
2Na(s) + 2H2O(l) ( 2NaOH(aq) + H2(g)
E.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
12.
What is the molarity of a solution that contains 5.0 moles of solute in 2.00 liters of solution?
13. What mass of K2CO3 is needed to prepare 200. mL of a solution having a concentration of 0.150 M?
14. A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the ammonium nitrate concentration in the resulting solution?
15. During a titration the following data were collected. A 10. mL portion of an unknown monoprotic acid solution was titrated with 1.0 M NaOH; 40. mL of the base were required to neutralize the sample. What is the molarity of the acid solution?
16. 34.62 mL of ...
Chapter 4 Problems1. Which of these compounds is a strong elec.docxrobertad6
Chapter 4 Problems
1.
Which of these compounds is a strong electrolyte?
A.
H2O
B.
O2
C.
H2SO4
D.
C6H12O6 (glucose)
E.
CH3COOH (acetic acid)
2. Which of these compounds is a nonelectrolyte?
A.
NaF
B.
HNO3
C.
CH3COOH (acetic acid)
D.
NaOH
E.
C6H12O6 (glucose)
3. Based on the solubility rules, which one of these compounds should be insoluble in water?
A.
NaCl
B.
MgBr2
C.
FeCl2
D.
AgBr
E.
ZnCl2
4. Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq) is mixed with a solution containing 0.1 g of KI(aq)/100 mL?
A.
KNO3 will precipitate; Pb2+ and I- are spectator ions.
B.
No precipitate will form.
C.
Pb(NO3)2 will precipitate; K+ and I- are spectator ions.
D.
PbI2 will precipitate; K+ and NO3- are spectator ions.
E.
Pb2+ and I- are spectator ions, and PbI2 will precipitate.
5. Give the oxidation # for the following atoms:
a. N in NaNO3 _________
b. Mn in KMnO4 _________
c. Cl in ClO3- _________
6. Which of these equations does not represent an oxidation-reduction reaction?
A.
3Al + 6HCl ( 3H2 + AlCl3
B.
2H2O ( 2H2 + O2
C.
2NaCl + Pb(NO3)2 ( PbCl2 + 3NaNO3
D.
2NaI + Br2 ( 2NaBr + I2
E.
Cu(NO3)2 + Zn ( Zn(NO3)2 + Cu
7. What element is oxidized in the chemical reaction
NiO2 + Cd + 2H2O ( Ni(OH)2 + Cd(OH)2?
A.
Ni
B.
Cd
C.
O
D.
H
E.
This is not a redox reaction.
8. Which of these chemical equations describes a precipitation reaction?
A.
2H2(g) + O2(g) ( 2H2O(l)
B.
CaBr2(aq) + H2SO4(aq) ( CaSO4(s) + 2HBr(g)
C.
2KNO3(s) ( 2KNO2(s) + O2(g)
D.
2KBr(aq) + Cl2(g) ( 2KCl(aq) + Br2(l)
E.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
9.
The common constituent in all acid solutions is
A.
H2.
B.
H+.
C.
OH-.
D.
H2SO4.
E.
Cl-.
10. Which of these chemical equations describes an acid-base neutralization reaction?
A.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
B.
SO2(g) + H2O(l) ( H2SO3(g)
C.
LiOH(aq) + HNO3(aq) ( LiNO3(aq) + H2O(l)
D.
2KBr(aq) + Cl2(g) ( 2KCl(aq) + Br2(l)
E.
CaBr2(aq) + H2SO4(aq) ( CaSO4(s) + 2HBr(g)
11. Which of these chemical equations describes a combustion reaction?
A.
2C2H6(g) + 7O2(g) ( 4CO2(g) + 6H2O(l)
B.
LiOH(aq) + HNO3(aq) ( LiNO3(aq) + H2O(l)
C.
N2(g) + 3H2(g) ( 2NH3(g)
D.
2Na(s) + 2H2O(l) ( 2NaOH(aq) + H2(g)
E.
2Al(s) + 3H2SO4(aq) ( Al2(SO4)3(aq) + 3H2(g)
12.
What is the molarity of a solution that contains 5.0 moles of solute in 2.00 liters of solution?
13. What mass of K2CO3 is needed to prepare 200. mL of a solution having a concentration of 0.150 M?
14. A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the ammonium nitrate concentration in the resulting solution?
15. During a titration the following data were collected. A 10. mL portion of an unknown monoprotic acid solution was titrated with 1.0 M NaOH; 40. mL of the base were required to neutralize the sample. What is the molarity of the acid solution?
16. 34.62 mL of.
Course Name (Legal Political and Ethical Dimensions of Business)MG.docxvanesaburnand
Course Name (Legal Political and Ethical Dimensions of Business)MGMT520
Week 2: Assignment Instructions
In each week the learning assignment is designed to demonstrate your competence with the Terminal Course Objectives of the course. Prior to working on the assignment, you should read through the week’s chapters and lesson.
Clearly identify your work with your name, the date, the week number and the assignment name, and upload work to the Dropbox.
The questions are designed to probe the higher levels of thinking and learning such as analyzing, evaluating and creating, and so there often are no “correct” answers. Instead of focusing and who wins or loses the case, you should analyze, evaluate and create alternative solutions to the various issues presented while arguing and debating the connections between business, law, politics and ethics.
Terminal Course Objective: G
Case Study: International and World Trade Law - Counterfeiting
Write a 1-2 page reflective paper (double spaced) on the following questions while discussing the connections between business, law, politics and ethics.
One: There has been a movement in the last decade encouraging people to “buy American.” Discuss the legal and ethical issues related to boycotting goods from other countries. What are the practical business implications of such a move?
Two: The World Trade Organization, or WTO, is the largest and most influential of the trade organizations. China and other heavy counterfeiting nations are part of this group. What could WTO-participating nations do to address the problems of counterfeiting? What should they do?
Three: The United Nations Security Council, the main decision-making body at the UN, is comprised of five regular members: China, France, the Russian Federation, the United Kingdom and the United States. Ten more members are elected from the General Assembly. Given the make-up of the committee, what type of action might the UN take with regard to the counterfeiting issue?
Submit your assignment to the Dropbox.
· 10165 - CHEM - 131 - Section 001 - Spring 2016 - General Chemistry Lec II
Top of Form
Question 1
Correct
Mark 3.00 out of 3.00
Flag question
Question text
All of the following are clues that a chemical reaction has taken place except
The reactant is smaller.
a.A flame occurs.
b.A color change occurs.
c. A solid forms.
Question 2
Question text
Balance the following equation in standard form and determine the sum of the coefficients.
a.6
b.4
c.3
d.14
e.7
Question 3
Question text
Balance this equation using the smallest possible integers, S + HNO3 → H2SO4 + NO2 + H2O. What is the coefficient of water.
Select one:
a.2
b.6
c.8
d. 1
e.
Question 4
Question text
When the following equation is balanced using the smallest possible integers, what is the coefficent of oxygen gas?
C7H16(g) + O2(g) → CO2(g) + H2O(g)
a.5
b.11
c.2
d.14
e.8
Question 5
Question text
True or false? The equation N2 + 3H2 → 2NH3 means that 1 g of N.
Chem 1010 Name__________________________________
Unit 4-5 Test
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) When the following equation is balanced, the coefficient of Al is __________.
Al (s) + H2O (l) → Al(OH)3 (s) + H2 (g)
A) 4
B) 1
C) 3
D) 5
E) 2
2) When the following equation is balanced, the coefficient of NaOH is __________.
H3PO4 (aq) + NaOH (aq) → Na3PO4 (aq) + H2O (l)
A) 1
B) 4
C) 2
D) 0
E) 3
3) When the following equation is balanced, the coefficient of O2 is __________.
C2H4O (g) + O2 (g) → CO2 (g) + H2O (g)
A) 5
B) 3
C) 4
D) 2
E) 1
4) When the following equation is balanced, the coefficient of C3H8O3 is __________.
C3H8O3 (g) + O2 (g) → CO2 (g) + H2O (g)
A) 2
B) 5
C) 7
D) 1
E) 3
1
5) Write a balanced equation to show the reaction of aqueous aluminum acetate with aqueous ammonium
phosphate to form solid aluminum phosphate and aqueous ammonium acetate.
A) Al(C2H3O2)2(aq) + (NH4)2PO4(aq) → AlPO4(s) + 2 NH4C2H3O2(aq)
B) Al(CO2)3(aq) + (NH4)3PO3(aq) → AlPO3(s) + 3 NH4CO2(aq)
C) Al(C2H3O2)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3C2H3O2(aq)
D) Al(C2H3O2)3(aq) + (NH4)3PO4(aq) → AlPO4(s) + 3 NH4C2H3O2(aq)
E) Al(CO3)2(aq) + (NH3)2PO4(aq) → AlPO4(s) + 2 NH3CO3(aq)
6) When the reaction shown is correctly balanced, the coefficients are:
C6H6 (l) + O2 (g) → CO2 (g) + H2O (g)
A) 1, 3.5, 6, 7
B) 2, 16.5, 12, 7
C) 2, 15, 12, 6
D) 1, 9.5, 6, 7
E) 1, 6, 6, 7
7) The balanced reaction between aqueous nitric acid and aqueous strontium hydroxide is ________.
A) 2HNO3 (aq) + Sr(OH)2 (aq) → 2H2O (l) + Sr(NO3)2 (aq)
B) 2HNO3 (aq) + Sr(OH)2 (aq) → Sr(NO3)2(aq) + 2H2 (g)
C) HNO3 (aq) + Sr(OH)2 (aq) → H2O (l) + Sr(NO3)2 (aq)
D) HNO3 (aq) + Sr(OH)2 (aq) → Sr(NO3)2 (aq) + H2 (g)
E) HNO3 (aq) + SrOH (aq) → H2O (l) + SrNO3 (aq)
8) What are the spectator ions in the reaction between Mg(OH)2 (aq) and HCl (aq)?
A) H+ and OH-
B) Mg2+ and H+
C) H+ and Cl-
D) OH- only
E) Mg2+ and Cl-
9) When aqueous solutions of AgNO3 and KI are mixed, AgI precipitates. The balanced net ionic equation is
________.
A) Ag+ (aq) + NO3- (aq) → AgNO3 (aq)
B) Ag+ (aq) + I- (aq) → AgI (s)
C) AgNO3 (aq) + KI (aq) → AgI (s) + KNO3 (aq)
D) AgNO3 (aq) + KI (aq) → AgI (aq) + KNO3 (s)
E) Ag+ (aq) + NO3- (aq) → AgNO3 (s)
10) A neutralization reaction between an acid and a metal hydroxide produces ________.
A) oxygen gas
B) sodium hydroxide
C) ammonia
D) water and a salt
E) hydrogen gas
2
11) When H2SO4 is neutralized by NaOH in aqueous solution, the net ionic equation is ________.
A) SO42- (aq) + 2Na+ (aq) → Na2SO4 (s)
B) 2H+ (aq) + 2NaOH (aq) → 2H2O (l) + 2Na+ (aq)
C) SO42- (aq) + 2Na+ (aq) → Na2SO4 (aq)
D) H2SO4 (aq) + 2OH- (aq) → 2H2O (l) + SO42- (aq)
E) H+ (aq) + OH- (aq) → H2O (l)
12) Which of the following is an oxidation-reduction reaction?
A) Pb(C2H3O2)2(aq) + 2 NaCl(.
ENG 107 Commentary 1HW for Tu, April 19th – Commentary .docxSALU18
ENG 107 Commentary 1
HW for Tu, April 19th – Commentary Paper Proposal
1. Choose the trend about which you will be writing your commentary.
2. Go to Google / images; type “you trend name stats” and find a recent chart/graph that represents this trend. Note, you graph has to come with an article.
3. Examine the chart/graph; try to read it and understand what it says.
4. Write a 1p. long Paper Proposal.
1. Insert the graph/chart
2. Write 1 paragraph in which you introduce and explain this graph to us.
i. The graph on Figure 1 represents the trend of …..(name the trend). The graph was made ion …. by…. This graph shows …. . We can also see that ….. Another obvious tendency shown in this graph is that …. . Finally, it is evident that ….
ii. The information presented in this trend made me think that ….
3. What is the significance of this trend? Why did you choose to write your commentary about this trend?
4. Read the article that comes with the trend. Write a short annotation to this article:
· You introduce your source:
I found an article (a website) on the Internet written (created) by ………..and publishedin (a newspaper) /on (a website) in… (date).
· Briefly summarize the main idea of the article:
From this article I learned that… . I also discovered that …. … . It was new to me that … Likewise I found out that... It turns out that… Moreover, I learned that… So-So’s (name of the author) article made me wonder… / think of … (Author’s Last Name / “Title of the Article”).
· Quote one or 2 sentences that you found especially interesting.
I found it especially interesting that So-So (author) says/ believes/ suggests/… that “……..your quotation goes here” (Author’s Last Name / “Title of the Article”).
· Your commentary / response to the article:
These words made me think that….
1
Practice Problems -- Set #4 (chap 9 and 10)
1. MgCl2 is a(an)
(A). acid
(B). base
(C). salt
(D). covalent compound
2. Which one of the compounds is insoluble in water (hint: solubility rules)
(A). BaSO4
(B). NaCl
(C). KI
(D). HCl
(E). All of the above are soluble in water.
3. Identify a strong base.
(A). HNO3
(B). KCl
(C). NH4OH
(D). NaOH
(E). Na2SO4
4. Acid-base reaction is a neutralization reaction. If 12.50 mL of 1.20 M NaOH solution is used to
neutralize 45.25 mL of HNO3 solution, calculate the concentration of the original HNO3
solution.
(A). 0.231 M
(B). 0.995 M
(C). 0.887 M
(D). 0.331 M
(E). 9.90 M
5. Acid-base reaction is a neutralization reaction. If 12.50 mL of 1.20 M NaOH solution is used to
neutralize 45.25 mL of H2SO4 solution, calculate the concentration of the original H2SO4
solution.
2NaOH + H2SO4 Na2SO4 + 2H2O (balanced?)
(A). 0.231 M
(B). 0.995 M
(C). 0.887 M
(D). 0.166 M
(E). 0.331 M
6. Oxidation-reduction (redox) reactions involve electrons. If an element in ground state loses two
electrons during the redox reaction, this process ...
Slack (or Teams) Automation for Bonterra Impact Management (fka Social Soluti...Jeffrey Haguewood
Sidekick Solutions uses Bonterra Impact Management (fka Social Solutions Apricot) and automation solutions to integrate data for business workflows.
We believe integration and automation are essential to user experience and the promise of efficient work through technology. Automation is the critical ingredient to realizing that full vision. We develop integration products and services for Bonterra Case Management software to support the deployment of automations for a variety of use cases.
This video focuses on the notifications, alerts, and approval requests using Slack for Bonterra Impact Management. The solutions covered in this webinar can also be deployed for Microsoft Teams.
Interested in deploying notification automations for Bonterra Impact Management? Contact us at sales@sidekicksolutionsllc.com to discuss next steps.
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
What will you get from this session?
1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
Topics covered:
Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
Speaker:
Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
Builder.ai Founder Sachin Dev Duggal's Strategic Approach to Create an Innova...Ramesh Iyer
In today's fast-changing business world, Companies that adapt and embrace new ideas often need help to keep up with the competition. However, fostering a culture of innovation takes much work. It takes vision, leadership and willingness to take risks in the right proportion. Sachin Dev Duggal, co-founder of Builder.ai, has perfected the art of this balance, creating a company culture where creativity and growth are nurtured at each stage.
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
Key Trends Shaping the Future of Infrastructure.pdfCheryl Hung
Keynote at DIGIT West Expo, Glasgow on 29 May 2024.
Cheryl Hung, ochery.com
Sr Director, Infrastructure Ecosystem, Arm.
The key trends across hardware, cloud and open-source; exploring how these areas are likely to mature and develop over the short and long-term, and then considering how organisations can position themselves to adapt and thrive.
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered QualityInflectra
In this insightful webinar, Inflectra explores how artificial intelligence (AI) is transforming software development and testing. Discover how AI-powered tools are revolutionizing every stage of the software development lifecycle (SDLC), from design and prototyping to testing, deployment, and monitoring.
Learn about:
• The Future of Testing: How AI is shifting testing towards verification, analysis, and higher-level skills, while reducing repetitive tasks.
• Test Automation: How AI-powered test case generation, optimization, and self-healing tests are making testing more efficient and effective.
• Visual Testing: Explore the emerging capabilities of AI in visual testing and how it's set to revolutionize UI verification.
• Inflectra's AI Solutions: See demonstrations of Inflectra's cutting-edge AI tools like the ChatGPT plugin and Azure Open AI platform, designed to streamline your testing process.
Whether you're a developer, tester, or QA professional, this webinar will give you valuable insights into how AI is shaping the future of software delivery.
Software Delivery At the Speed of AI: Inflectra Invests In AI-Powered Quality
Chemical reaction activities
1. Physics and Chemistry 3rd
ESO Albarregas High School
CHEMICAL REACTIONS
Activities
Activity 1:
Which of these processes are physical and which of them are chemical?
a) Fermentation of grape juice in order to get wine.
b) Evaporation of sea water to get salt.
c) Oxidation of iron.
d) Solving coffee in a cup of milk.
e) Burning wood.
f) Gas bubbles escape up from a Coke.
Activity 2:
An oxidated nail weights more than before its oxidation. Does this fact mean that Lavoisier's
law doesn't work? Reason your answer.
Activity 3:
Which of these properties change in chemical processes and which of them don't?
a) The total number of atoms.
b) The total number of molecules.
c) The mass.
d) The volume.
e) Bonds.
Activity 4:
Are these sentence true or false?
a) One mole of a substance has 6.022 10· 23
grams.
b) In chemical processes molecules and atoms change.
c) We can get salt from sea water through a chemical process.
Activity 5:
Fill the gaps. Do the calculations you need.
Carbon dioxyde CO2 is a __________ that we can find in the atmosphere. One mole of this gas
contains 6.022 10· 23
_______________, this involves that 1 mole has ______________ atoms of C and
________________ atoms of H. The ______________ of one mole of a gas only depends on the conditions of
_______________ and temperature. 1 mol of CO2, O2, CH4 or any other gas occupies _________ litres at 1
atm and 273 K.
Activity 6:
How many moles are there in a litre of water? How many molecules? How many atoms?
Activity 7:
Air consists of oxygen (O2) in a 21 percent. How many moles of oxygen are there in 100
litres of air?
Teacher: José Vicente Pacheco Page 1 of 4
2. Physics and Chemistry 3rd
ESO Albarregas High School
Activity 8:
Complete the table. Look for the atomic masses in the periodic table. Remember: NA = 6.022
10· 23
particles/mol; volume of 1 mole of gas (0ºC and 1 atm)= 22,4 litres
Substance Mass (g)
mass of 1
mole (g)
moles molecules atoms
Volume
(litres)
stp conditions
Aluminium
chloride
(AlCl3)
150
Al:
Cl:
Chlorine
(Cl2)
2,5
Ammonia
(NH3)
N:
H:
Sulfur
trioxyde
(SO3)
1024 S:
O:
Activity 9:
Calcium carbonate (CaCO3) is a solid substance at room temperature. If we warm it up
sufficiently, it disappears and two substances appear: calcium oxide, which is solid, and a gas:
carbon dioxyde.
a) Draw the molecules of the three substances that are involved in the reaction.
Calcium carbonate (CaCO3) Calcium oxide (CaO) + carbon doxyde (CO2)
b) Is this a chemical reaction or a physical process?
Activity 10:
The reaction between 21 grams of nitrogen and 9 grams of hydrogen produces 30 grams of
ammonia.
a) Do these data follow Lavoisier's law?
b) What would have happened if we had tried the reaction beteween 21 grams of nitrogen
and 15 grams of hydrogen?
Activity 11:
Calcium hidroxide, Ca(OH)2, and chlorine hydride, HCl, react and produce calcium
chloride, CaCl2, and water.
a) Complete the table writing the formulae and drawing the molecules of products and
reactants.
Teacher: José Vicente Pacheco Page 2 of 4
3. Physics and Chemistry 3rd
ESO Albarregas High School
Reactants Products
Formulae Ca(OH)2 + HCl
Molecules
b) Write and balance the chemical equation of this process, draw the molecules represented
in the balanced equation and check that the number of atoms of each element is the same in both
sides of the arrow
Equation
Molecules Reactants Products
# atoms of Cl
# atoms of Ca
# atoms of H
# atoms of O
Activity 12:
Balance these equations:
a) ___ N2 + ___ O2 ___ NO→ 2
b) ___ K2CO3 + ___ HCl ___ KCl + ___ CO→ 2 + ___ H2O
c) ___ C3H8 + ___ O2 ___ CO→ 2 + ___ H2O
d) ___ Ca(OH)2 + ___ HCl ___ CaCl→ 2 + ___ H2O
e) ___ Al + ___ HCl ___ AlCl→ 3 + ___ H2
f) ___ CuO + ___ HNO3 ___ Cu(NO→ 3)2 + ___ H2O
Activity 13:
Magnesium reacts with oxygen and gives magnesium oxide MgO2.
a) Write and balance the chemical equation of the process.
b) How many moles of magnesium react with one mole of oxygen?
c) How many grams of oxygen react with 48 g of magnesium?
Activity 14:
Copper(II) carbonate breaks down on heating, like this: CuCO3(s) CuO→ (s) + CO2(g)
a) Find the mass of a mole of each substance that take part in the reaction.
b) When 31 g of copper(II) carbonate are used, how many grams of CuO and CO2 are
formed?
Teacher: José Vicente Pacheco Page 3 of 4
4. Physics and Chemistry 3rd
ESO Albarregas High School
Activity 15:
What volume of hydrogen is formes, at stp, when 0.12 g of magnesium reacts with
hydrochloric acid HCl? The chemical equation of this process is: Mg(s) + HCl(g) MgCl→ 2(g) + H2(g)
Activity 16:
What volumen of nitrogen and hydrogen gives 50 dm3
of ammonia gas (stp)? The chemical
equation of this process is: N2(g) + H2(g) NH→ 3(g)
ACTIVITIES FROM YOUR P&C BOOK
Before doing them, I advise you to read carefully the solved samples onm pages 100 and 101.
On page 95: 8
On page 97: 14
On page 101: 17 and 18
On page 104: 26
On page 105: 41
Teacher: José Vicente Pacheco Page 4 of 4