Chemistry Second Semester Review: Units 4-9

10:6

3:4

2:3

4:3

actual yeild.

theoretical yield.

experimental yield.

Both (a) and (c).

masses, in grams, of all reactants and products.

numbers of moles of reactants and products.

number of atoms in each compound in a reaction.

number of valence electrons involved in the reaction.

g/mol.

mol/g.

amu/mol.

amu/g.

2.0 ml

6.0 mol

12 mol

18 mol

formation of a precipitate

production of a gas

evolution of heat and light

change in total mass of substances

a precipitate.

a reactatnt.

a molecule.

the mass of the product.

always more than the total mass of the products.

always less than the total mass of the products.

sometimes more and sometimes less than the total mass of the products.

always equal to the total mass of the products.

1, 2, 2

1, 1, 2

2, 1, 1

2, 2, 2

$$S\left(s\right)\ \ +\ \ O_2\left(g\right)\ \ \rightarrow\ SO\left(g\right)$$

$$S\left(s\right)\ +\ O_2\left(g\right)\ \ \rightarrow\ SO_2\left(g\right)$$

$$2\ S\left(s\right)\ +\ 3\ O_2\left(g\right)\rightarrow\ SO_3\left(s\right)$$

$$S\left(s\right)+2\ O_2\ \left(g\right)\rightarrow SO_4^{-2}\left(aq\right)$$