Unit 3: Lesson 1

Question 1

Chemical Stoichiometry

Answer 1

Measures chemicals going into/out of equations-Proportions of chemicals

Question 2

Atomic Mass

Answer 2

C-12 has exactly 12 u’s, each other element has an assigned atomic mass based on this standard

Question 3

Average atomic mass

Answer 3

The averaged number is isotopes in an element (amu)

Question 4

Relative atomic mass

Answer 4

The average atomic mass of an element compared to C-12 atom
RAM = 1 mol = Molar Mass (g/mol)

Question 5

Mole

Answer 5

Expresses an element’s/chemical’s atomic mass in terms of grams

Question 6

Avogadro’s Number

Answer 6

6.022 x 10^23 atoms in 12 g of
C-12

Question 7

Reactants and products

Answer 7

two sides of a reaction, before and after. There needs to be the same number of atoms on each side (Balanced)