Vocabulary
This is a counting unit. It describes 6.02 x 10^23 of anything.
Mole
When baking soda and vinegar react, what evidence of a chemical reaction do you observe?
Bubbles, it feels cooler
What is the molar mass of helium (He)?
4.003
_ Na + _ HCl -> _ H2 + _NaCl
2 Na + 2 HCl -> 1 H2 + 2 NaCl
How many atoms are in 1 mole?
6.02 x 10^23
These are the chemicals of the right side of the chemical reaction. AKA, the chemicals that are produced.
Products
Burning a candle is a chemical reaction. What is the evidence that a chemical reaction is occurring?
Heat and light are produced, a new substance in formed
What is the molar mass of salt (NaCl)?
58.44
_ Cl2 + _ KI -> _ KCl + _ I2
1 Cl2 + 2 KI -> 2 KCl + 1 I2
How many moles are in 12.0 g of carbon (C)?
1 mole
These are the chemicals on the left side of the chemical reaction. AKA, the chemicals that are consumed.
Reactants
When a piece of iron rusts, a chemical reaction is occurring. What is the evidence of this chemical reaction?
A color change
What is the molar mass of hydrogen gas (H2)?
2.02
_ Mg + _ HCl -> _ MgCl2 + _H2
1 Mg + 2 HCl -> 1 MgCl2 + 1 H2
How many moles are in 36 g of water (H2O)?
2 mol
This is a type of math that we use in chemistry to solve for the amount of moles, grams, and molecules.
Stoichiometry
When you digest food, a chemical reaction is occurring in your body. What is the evidence of the chemical reaction?
What is the molar mass of water (H2O)?
18.02
_ Na + _ O2 -> _ Na2O
4 Na + 1 O2 -> 2 Na2O
How many grams are in 1 mole of salt (NaCl)?
58.44
This means "salt dissolved in water." Hint: it begins with an "A"
Aqueous
Ms. Breck is going to place a piece of zinc in hydrochloric acid. How do you know there is a reaction going on between the zinc and hydrochloric acid?
There are bubbles (gas is produced)
What is the molar mass of sugar (C6H12O6)?
180
_ Zn + _ HCl -> _ ZnCl2 + _H2
1 Zn + 2 HCl -> 1 ZnCl2 + 1 H2
How many grams are in 2.5 moles of salt (NaCl)?
146.1