Homework due Monday, June 24

A.7  pg. 20-21 #1-2

1. In total, my household used 7,530 liters of water each over the span of three days.
2. Approximately 1,506 liters of water were used per person each day.
3.

4. The range of the average daily personal water use within my class was 1,493.
5. The mean value for the class data was 600 L and the median value for the class data was 579 L.
6. We water our yards year round because we live in a desert. Also, the families in our class have more yard space than others.
7. Household.


ISBS pg. 50-51 #13-18

13.

14. (a) i, ii, iv, vi
      (b) iii, v

15. A chemical formula provides each chemical's substance and it's accompanying subscript which indicates the amount of atoms included in each element.

16. (a) Hydrogen, Phosphorus, and Oxygen; Hydrogen=3, Phosphorus=1, and Oxygen=4.
      (b) Sodium, Oxygen, and Hydrogen; Sodium= 1, Oxygen=1, and Hydrogen=1.
      (c) Sulfer, Oxygen; Sulfer=1 and Oxygen=2.

17.

18. (a) NaHCO3 + HCl ---> NaCl + H2O + CO2
      (b) C6H12O6 + O6 ---> 6CO2 + 6H2O