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문제 17c
Evaluate each of the following:
c. 4 × (–2) + 6 = __________
문제 22d
Use the following graph for problems 1.23 and 1.24:
How many minutes were needed to reach a temperature of 45 °C?
문제 24b
An alloy contains 67 g of pure gold and 35 g of pure zinc. What is the percentage of zinc in the alloy? Express your answer to the ones place.
문제 30a
Write each of the following in scientific notation:
a. 0.024
문제 30b
Write each of the following in scientific notation:
b. 1500
문제 30c
Write each of the following in scientific notation:
c. 0.000 62
문제 30d
Write each of the following in scientific notation:
d. 360 000
문제 33
A container was found in Gloria's home that contains 140 g of ethylene glycol in 480 g of liquid. What is the percentage of ethylene glycol? Express your answer to the ones place.
문제 34
If the toxic quantity is 1.5 g of ethylene glycol per 1000 g of body mass, what percentage of ethylene glycol is fatal?
문제 51a
A bag of gumdrops contains 16 orange gumdrops, 8 yellow gumdrops, and 16 black gumdrops.
a. What is the percentage of yellow gumdrops? Express your answer to the ones place.
문제 55a
Write each of the following in scientific notation:
a. 0.000 026
문제 55b
Write each of the following in scientific notation:
b. 650
문제 55c
Write each of the following in scientific notation:
c. 0.37
문제 55d
Write each of the following in scientific notation:
d. 530 000
문제 56a
Write each of the following in scientific notation:
a. 0.072
문제 56b
Write each of the following in scientific notation:
b. 1440
문제 56c
Write each of the following in scientific notation:
c. 0.000 48
문제 56d
Write each of the following in scientific notation:
d. 9 100 000
문제 63d
Use the following graph for problems 1.55 and 1.56:
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d. Does the solubility of carbon dioxide increase or decrease with an increase in temperature?
