Oxygen and Matter Essay

Submitted By hpverga

Words: 489

Pages: 2

Open Document

Characteristics of Matter: * What is Chemistry? (1 A) * Properties, composition and behaviour of matter (1 B) * Classification of substances – solid, liquid or gas (1 C) * Properties of solids, liquids and gases (1 D) * Kinetic Molecular Theory (1 E) * Motions of particles in solids, liquids and gases (1 F)

(2) Ionic and Covalent Compounds (including Acids and Bases): * Use periodic table to be able to name ionic compounds and write their formulas (2 A) * Given the formula of an ionic compound be able to write the name (2 B) * Names and formulas for acids and bases (2 C) * Names and formulas for covalent compounds. (using prefixes) (2 D)

Questions:
1A. What is the branch of science which deals with identification of substance s of which matter is composed? --Chemistry What is the branch of science which deals with properties of matter, its composition and behaviour of matter? --Chemistry
1B. What is the property of matter that includes texture, melting point and freezing point of a substance? --physical property State the two properties of matter that determines its states? --temperature and pressure
1C. Classify each of the following substances as solid, liquid, or gas.
(a) Gold
(b) Water
(c) Helium
(d) Alcohol
(e). Salt

-- (a) solid, (b) liquid, (c) gas, (d) liquid, (e) solid
1D. What is the state of matter that is a compressible fluid and conform the shape of its container? --gas What is the state of matter that the particles are packed closely together? --solid
1E. A theory which states that matter in all states are in vigorous motion. What theory is it? --Kinetic molecular theory Give at least one part of Kinetic Molecular Theory. --All particles are in random motion
--all collisions are elastic
--small, hard sphere with insignificant volume

1F. What is the state of matter in which the molecules vibrate in the same position with very limited motion? --solid

Chemistry: Atoms, The Basis Of Chemistry

zinc, oxygen, aluminium and copper. A mixture is a combination or elements or compounds, in which you can separate them again e.g. sand + water, salt + water, and sugar + salt. An alloy is a metal made by combining two or more metallic elements, e.g. bronze, cupro-nickel, brass, and stainless steel is an alloy of iron and chromium. Particle theory – Particle theory is a theory of matter that believes matter is made up of particles that are constantly moving around. * Matter is made…

Words 2583 - Pages 11

Cornelius Drebbel's Currentl Oxygen

Oxygen is one of the elements most crucial to our survival as human beings; without it, we would not exist in our current form. It is vitally important to life on Earth and exists in massive quantities and in various forms throughout our planet. The sheer amount of oxygen is almost incomprehensible, existing from the deepest ocean trenches to the highest mountain tops. It is the third most abundant element on Earth. Originally named oxy-géne by the Greeks for “acid forming”, the discovery of oxygen…

Words 1700 - Pages 7

Water Chemistry Essay

results of this report, the correct level of dissolved oxygen is extremely important in drinking water and the amount of alum, which must be added to untreated water to lower the turbidity, is relatively high. Introduction: Water is a very unusual and unique compound and is the only natural substance which can be found on Earth as a liquid, solid and gas (The National Science Foundation,, n.d.). One water molecule consists of one oxygen atom and two hydrogen atoms, which are bound together by…

Words 1851 - Pages 8

Anaeobic and Aerobic Exercises Essay

this matter?" and "What does each of these terms mean?" When I was present with the two terms, I only knew what aerobic exercises meant to a certain extent. Both aerobic and anaerobic exercises will help you achieve a healthy body. As we all know, any kind of exercise requires that you use some form of energy. When you think of aerobic and anaerobic exercises, you should really think of them in the mind frame of the presence of oxygen. In aerobic exercises, your body is using oxygen to create…

Words 410 - Pages 2

Photosynthesis and Carbon Dioxide Essay

Lecture 6.8: Photosynthesis, Respiration, and Photorespiration Respiration The controlled breakdown of sugar to release energy (ATP and NADPH) stored as sugar. (Requires sugar and oxygen; happens in every cell of the plant) High activity of respiration in sinks. C6H12O6 [sugar] +O2=CO2 [byproduct] +H2O [byproduct] +Energy Occurs in the mitochondria of the cell (an organelle in the cell) Photorespiration Rubisco (the enzyme used in the Calvin Cycle to attach the carbon in CO2 to a 5C [carboxylase]…

Words 1013 - Pages 5

OSA Model

OSA causes nocturnal intermittent hypoxemia and sleep fragmentation (arousals) in response to oxygen desaturation. There is emerging evidence that OSA, vascular depression, and cognitive impairment/dementia are linked to several pathological processes in the cerebral microvascular and neurovascular systems. We present a model describing the key pathophysiological mechanisms that underlie those associations for which intermittent hypoxia plays a critical role, including hypoperfusion, endothelial…

Words 1346 - Pages 6

Essay about Teens and Violent Video Games

extinct in the next quarter century due to deforestation.Are you aware, in over 100 years there could be no more rain forests.And knowing that,are you aware that 20% of the worlds oxygen is produced by the rain forest. And if the rain forest is cleared in a hundred years what will happen to us when 20% of the worlds oxygen is gone.Deforestation,one of the worlds most hellish concepts on the planet.Wildlife of the forest are suffering because deforestation has destroyed their home.People think that…

Words 385 - Pages 2

cell diffusion Essay

using the equation below, (Crank, 1975) “The amount of a property passing through a unit area per unit time is called a flux. e.g. moles m–2s–1. The flux of matter is directly proportional to the gradient of matter.” (Crank, 1975) There are two ways in which a substance can enter/ leave a cell i.e. passive and active transport. Passive includes simple diffusion and osmosis, this happens when water is present. Active transport deals…

Words 813 - Pages 4

Notes On Chemistry

Chemical Property: Any characteristic that gives a sample of matter the ability/inability to undergo a change that alters its composition. Examples: Alkali metals react with water; Paper's ability to burn. Physical Change: Change in which the matter's physical appearance is altered, but composition remains unchanged. (Change in state of matter) Chemical Change: Change in which one or more kinds of matter are transformed to new kinds of matter with altered compositions (or Chemical Reaction). 1. Change…

Words 681 - Pages 3

Dissolved Oxygen Essay

Bea Haymon Clark What is Dissolved Oxygen? Oxygen gas that is dissolved into water is dissolved oxygen, or DO. DO is essential for rivers, streams, lakes, and aquatic life. It is a positive sign to have DO in water. If there is an absence of oxygen in water, it can be a sign of severe pollution. Water ranges from very high levels of DO to very low levels of DO. Sometimes the DO is so low, there is hardly any aquatic life. Where Does Dissolved Oxygen Come From? Most DO in water comes from…

Words 947 - Pages 4