Homework Blog 16

1. The law of conservation of matter is neither created nor distroyed.

2. The scientific law are the laws that describe the behavior of events in nature, but they do not provide explanations for the observed behavior.

3. The terms "using up" and "throwing away" are misleading because according to the law of conservation of matter, atoms are forever.

4.
a. Not balanced - Reactant side: Sn, 1; H, 1; F, 1; Product side: Sn, 1; H, 2; F; 2
b. Not balanced - Reactant side: Si, 1; O, 2; C, 1; Product Side: Si, 1; O, 1; C, 2
c. Balanced - Reactant side: Al, 1; O, 3; H, 6; Cl, 3; Product Side: Al, 1; O, 3; H, 6; Cl, 3

5.
a. 3
b. 2
c. 1

6.
a. 1, 3, 1, 3
b. 2, 3, 2, 2
c. 4, 2, 3

7.
a. 1, 3, 2, 3
b. 2, 25, 16, 18

8.
a. Yes
-Reactants:
S: 1
O: 4
K: 2
Cl: 2
-Products:
S: 1
O: 4
K: 2
Cl: 2
b. No, because subscripts always stay the same. Coefficients can change.
c. 1, 2, 1, 2

9. 400,000 moles to spend 1 billion dollars.

10.
a. 32 g
b. 48 g
c. 100 g
d. 58 g
e. 180 g

11. The atomic mass equals the atomic weight which always stays the same for each element and thoese elements have the same atomic weight.

12.
a. 1 atom
b. .5 atoms
c. .1 atoms
d. .03 atoms