Vocabulary
The inputs of a chemical reaction
What is reactant?
How many atoms is 20 mols of Lithium?
1.24 x 10^25
Mg + HCl --> MgCl2 + H2
Mg + 2HCl --> MgCl2 + H2
What is the molar mass of sodium?
22.9 g
The process of a liquid becoming a gas.
Evaporation/ Boiling
What is stoichiometry?
The study of ratio relationships between reactants and products in a chemical reaction
How many molecules are in 3.2 moles of H20?
1.92 x10^24
H2 + O2 --> H20
2H2 + O2 --> 2H20
How many grams is 2 moles of Calcium?
80 grams
What does PH stand for?
Potential of Hydrogen
6.022 x 10^23 of anything
What is a mole?
3.011 x 10^24
Fe + Cl2 --> FeCl3
2Fe + 3Cl2 --> 2FeCl3
What is the molar mass of sodium chloride (NaCl)?
58.44 grams
Name an example of an acid and an example of a base.
Teacher's choice
What is molar mass?
Ammonia, NH3, is widely used as a fertilizer and in many household cleaners. How many molecules of ammonia are in 0.5 moles?
3.011 x 10^23
S + O3 --> SO2
3S + 2O3 --> 3SO2
252.3 grams
What ionic particle makes a liquid acidic?
H+
The law that states that mass is neither created nor destroyed during ordinary chemical or physical reactions. (This is why we balance chemical equations!)
What is the law of conservation of mass?
Baking soda has the chemical formula NaCO3. In 2 moles of baking soda, how many moles of oxygen atoms are there?
3.6 x 10^24
C2H6 + O2 --> CO2 + H2O
2C2H6 + 7O2 --> 4CO2 + 6H2O
When copper (II) chloride [CuCl2] reacts with sodium nitrate, copper (II) nitrate and sodium chloride are formed. If 15 g CuCl2 react, how many moles is that?
0.11 moles of CuCl2
Explain why 'boil the water before you drink it' is poor advice for citizens of East Palestine, Ohio
Teacher choice