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5Chemical Equation
Review chapter 5
Question | Answer |
---|---|
How is a chemical equation written? | With reactants on the left and products on the right separated by a horizontal arrow. |
What do Coefficients show? | Coefficients show the number of molecules of a given element or compound that react are formed. |
Name the physical state symbols for gas, liquid, solid, and aquesus solution. | gas (g), liquid (L), solid (s), aquesus solution (aq) |
Law of Conservation of Mass | means total mass of products must equal the total mass of the reactants. |
LEO the lion says GER. Lose electron oxidation gain electron reduction | |
oxidation? | refers to loss of an electron. |
reduction? | refers to gain of an electron. |
Mole? | a quantity that contains 6.02x10^23 items--- usually atoms, molecules, or ions. |
Avogadro's number? | 6.02x10^23 |
1 mole = 6.02x10^23 | |
The weight of one mole of atoms of any monoatomic element is equal to the element's atomic weight in grams (g). | |
Avogadro's Law of Gas | "equal volumes of different gases contain equal numbers of gas particles." |
STP | standard temperature and pressure |
STP temperature | 0 degree and 760mm Hg |
Under STP what doe one mole of any gas occupy? | one mole occupies 22.4 L |
Redox reaction | is the electron transport |