CHEM 105 EXAM 1 BYU UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS
Question:
1. Intensive properties
Answer:
do not depend on the amount of matter present
Question:
2. Extensive properties
Answer:
depend on the amount of matter that is present
Question:
3. chemical reactions
Answer:
alter the chemical makeup of a substance
Question:
4. Law of Multiple Proportions (Dalton)
Answer:
If two elements A and B combine to form more than one compound, the masses of B that can combine
with a given mass of A are in the ratio of small whole numbers.
Question:
5. Law of Definite Proportions (Proust)
Answer:
a chemical compound contains the same elements in exactly the same proportions by mass regardless of
the size of the sample or source of the compound
Question:
6. Avogadro's number
Answer:
6.022 x 10^23. The number of particles in exactly one mole of a pure substance
Question:
7. G
Answer:
10^9
Question:
8. M
Answer:
10^6
, Question:
9. k
Answer:
1000
Question:
10. h
Answer:
100
Question:
11. da
Answer:
10
Question:
12. d
Answer:
10
Question:
13. c
Answer:
100
Question:
14. m
Answer:
1000
Question:
15. µ
Answer:
10^6
Question:
16. n
Answer:
10^9
Question:
17. p
Answer:
10^12
AND CORRECT ANSWERS
Question:
1. Intensive properties
Answer:
do not depend on the amount of matter present
Question:
2. Extensive properties
Answer:
depend on the amount of matter that is present
Question:
3. chemical reactions
Answer:
alter the chemical makeup of a substance
Question:
4. Law of Multiple Proportions (Dalton)
Answer:
If two elements A and B combine to form more than one compound, the masses of B that can combine
with a given mass of A are in the ratio of small whole numbers.
Question:
5. Law of Definite Proportions (Proust)
Answer:
a chemical compound contains the same elements in exactly the same proportions by mass regardless of
the size of the sample or source of the compound
Question:
6. Avogadro's number
Answer:
6.022 x 10^23. The number of particles in exactly one mole of a pure substance
Question:
7. G
Answer:
10^9
Question:
8. M
Answer:
10^6
, Question:
9. k
Answer:
1000
Question:
10. h
Answer:
100
Question:
11. da
Answer:
10
Question:
12. d
Answer:
10
Question:
13. c
Answer:
100
Question:
14. m
Answer:
1000
Question:
15. µ
Answer:
10^6
Question:
16. n
Answer:
10^9
Question:
17. p
Answer:
10^12
