This document discusses three key elements - carbon, hydrogen, and oxygen - that are essential for life. It notes that carbon is required for important biomolecules like proteins, carbohydrates, lipids, and nucleic acids. Hydrogen is a major element in organic compounds and performs roles in pH maintenance, hydrogen bonding, and energy release. Oxygen makes up 20.8% of the atmosphere, is used in cellular respiration, and is found in organic molecules; it is continuously replenished through photosynthesis.
Hey I'm DIVYA SHREE NANDINI and I'm here going to present my topic on OXYGEN. Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O
2. Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. As compounds including oxides, the element makes up almost half of the Earth's crust.
Wanna know more about oxygen lets go with me
Enjoy the ride - sea sai
This is a power point presentation on The Oxygen Carbon Dioxide cycle which will give you too much of Information on The cycle and please like , share , download and love my power point p
Hey I'm DIVYA SHREE NANDINI and I'm here going to present my topic on OXYGEN. Oxygen is a chemical element with symbol O and atomic number 8. It is a member of the chalcogen group on the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds. By mass, oxygen is the third-most abundant element in the universe, after hydrogen and helium. At standard temperature and pressure, two atoms of the element bind to form dioxygen, a colorless and odorless diatomic gas with the formula O
2. Diatomic oxygen gas constitutes 20.8% of the Earth's atmosphere. As compounds including oxides, the element makes up almost half of the Earth's crust.
Wanna know more about oxygen lets go with me
Enjoy the ride - sea sai
This is a power point presentation on The Oxygen Carbon Dioxide cycle which will give you too much of Information on The cycle and please like , share , download and love my power point p
Our Life and Chemistry Chp-2 General Science 9th 10thKamran Abdullah
Subject : General Science
Teacher: Mr Ehtisham Ul Haq
Class: BS EDUCATION
Semester: 2nd (Spring(2023-2027)
Date Of Starting Of Semester : 4 September 2023
Date Of End Of Semester : 20 January 2024
University Of Sargodha
Institute of Education
These are the presentation slides that we prepare by our own research and work!
Gaseous chemical element, chemical symbol O, atom.pdfrajat630669
Gaseous chemical element, chemical symbol O, atomic number 8. It constitutes
21% (by volume) of air and more than 46% (by weight) of Earth\'s crust, where it is the most
plentiful element. It is a colourless, odourless, tasteless gas, occurring as the diatomic molecule
O2. In respiration, it is taken up by animals and some bacteria (and by plants in the dark), which
give off carbon dioxide (CO2). In photosynthesis, green plants assimilate carbon dioxide in the
presence of sunlight and give off oxygen. The small amount of oxygen that dissolves in water is
essential for the respiration of fish and other aquatic life. Oxygen takes part in combustion and in
corrosion but does not itself burn. It has valence 2 in compounds; the most important is water. It
forms oxides and is part of many other molecules and functional groups, including nitrate,
sulfate, phosphate, and carbonate; alcohols, aldehydes, carboxylic acids, and ketones; and
peroxides. Obtained for industrial use by distillation of liquefied air, oxygen is used in
steelmaking and other metallurgical processes and in the chemical industry. Medical uses include
respiratory therapy, incubators, and inhaled anesthetics. Oxygen is part of all gas mixtures for
manned spacecraft, scuba divers, workers in closed environments, and hyperbaric chambers. It is
also used in rocket engines as an oxidizer (in liquefied form) and in water and waste treatment
processes.
Solution
Gaseous chemical element, chemical symbol O, atomic number 8. It constitutes
21% (by volume) of air and more than 46% (by weight) of Earth\'s crust, where it is the most
plentiful element. It is a colourless, odourless, tasteless gas, occurring as the diatomic molecule
O2. In respiration, it is taken up by animals and some bacteria (and by plants in the dark), which
give off carbon dioxide (CO2). In photosynthesis, green plants assimilate carbon dioxide in the
presence of sunlight and give off oxygen. The small amount of oxygen that dissolves in water is
essential for the respiration of fish and other aquatic life. Oxygen takes part in combustion and in
corrosion but does not itself burn. It has valence 2 in compounds; the most important is water. It
forms oxides and is part of many other molecules and functional groups, including nitrate,
sulfate, phosphate, and carbonate; alcohols, aldehydes, carboxylic acids, and ketones; and
peroxides. Obtained for industrial use by distillation of liquefied air, oxygen is used in
steelmaking and other metallurgical processes and in the chemical industry. Medical uses include
respiratory therapy, incubators, and inhaled anesthetics. Oxygen is part of all gas mixtures for
manned spacecraft, scuba divers, workers in closed environments, and hyperbaric chambers. It is
also used in rocket engines as an oxidizer (in liquefied form) and in water and waste treatment
processes..
In Earth science, a biogeochemical cycle or substance turnover or cycling of substances is a pathway by which a chemical substance moves through both the biotic (biosphere) and abiotic (lithosphere, atmosphere, and hydrosphere) components of Earth.
Guided notes covering material from Topic 2.1 of the updated IB Biology syllabus for 2016 exams. Notes sequence and prompts are based on the Oxford IB Biology textbook by Allott and Mindorff.
The Milk Microbiology ppt is useful to the under graduate students. This ppt may help to summarize the studied content related to the mentioned points in the given collection of slides.
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
The Roman Empire A Historical Colossus.pdfkaushalkr1407
The Roman Empire, a vast and enduring power, stands as one of history's most remarkable civilizations, leaving an indelible imprint on the world. It emerged from the Roman Republic, transitioning into an imperial powerhouse under the leadership of Augustus Caesar in 27 BCE. This transformation marked the beginning of an era defined by unprecedented territorial expansion, architectural marvels, and profound cultural influence.
The empire's roots lie in the city of Rome, founded, according to legend, by Romulus in 753 BCE. Over centuries, Rome evolved from a small settlement to a formidable republic, characterized by a complex political system with elected officials and checks on power. However, internal strife, class conflicts, and military ambitions paved the way for the end of the Republic. Julius Caesar’s dictatorship and subsequent assassination in 44 BCE created a power vacuum, leading to a civil war. Octavian, later Augustus, emerged victorious, heralding the Roman Empire’s birth.
Under Augustus, the empire experienced the Pax Romana, a 200-year period of relative peace and stability. Augustus reformed the military, established efficient administrative systems, and initiated grand construction projects. The empire's borders expanded, encompassing territories from Britain to Egypt and from Spain to the Euphrates. Roman legions, renowned for their discipline and engineering prowess, secured and maintained these vast territories, building roads, fortifications, and cities that facilitated control and integration.
The Roman Empire’s society was hierarchical, with a rigid class system. At the top were the patricians, wealthy elites who held significant political power. Below them were the plebeians, free citizens with limited political influence, and the vast numbers of slaves who formed the backbone of the economy. The family unit was central, governed by the paterfamilias, the male head who held absolute authority.
Culturally, the Romans were eclectic, absorbing and adapting elements from the civilizations they encountered, particularly the Greeks. Roman art, literature, and philosophy reflected this synthesis, creating a rich cultural tapestry. Latin, the Roman language, became the lingua franca of the Western world, influencing numerous modern languages.
Roman architecture and engineering achievements were monumental. They perfected the arch, vault, and dome, constructing enduring structures like the Colosseum, Pantheon, and aqueducts. These engineering marvels not only showcased Roman ingenuity but also served practical purposes, from public entertainment to water supply.
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.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
1. Dr. Deepak U. Bhusare
Department of Microbiology
D. B. ACS College, Bhokar.
2. Carbon
Carbon is required for proteins, carbohydrates, lipids, and nucleic acids.
Majority of carbon compounds involved in the normal structure and
metabolism of all cells are organic.
An autotroph is an organism that uses CO2
3. Hydrogen
Hydrogen is a major element in all organic compounds and several inorganic
ones, including water (H2O), salts (Ca[OH]2), and certain naturally occurring
gases (H2S, CH4, and H2).
These gases are both used and produced by microbes.
Hydrogen performs the following overlapping roles in the biochemistry of cells:
(1) Maintaining pH,
(2) Forming hydrogen bonds between molecules, and
(3) Serving as the source of free energy in oxidation-reduction reactions
of respiration.
4. Oxygen
A colorless and odorless diatomic gas with the formula O2. Diatomic oxygen gas
constitutes 20.8% of the Earth's atmosphere.
Dioxygen is used in cellular respiration and many major classes of organic
molecules in living organisms contain oxygen, such as proteins, nucleic
acids, carbohydrates, and fats, as do the major constituent inorganic compounds of
animal shells, teeth, and bone.
Most of the mass of living organisms is oxygen as a component of water, the
major constituent of lifeforms.
Oxygen is continuously replenished by photosynthesis, which uses the energy of
sunlight to produce oxygen from water and carbon dioxide.
Oxygen is too chemically reactive to remain a free element in air without being
continuously replenished by the photosynthetic action of living organisms.
Ref: www. Google.com
