ACT Science Review Questions

Front

Back

NaCl

Front

The data shown in Table 1 support the conclusion that, for a given substance, as the temperature of the water increases, the amount of solute that can be dissolved:

Back

varies, but there is a trend depending on the substance.

Front

Back

Front

A scientist wants to dissolve at least 50 grams of NH4Cl in 100 g of water for the proper concentration. What is a reasonable minimum temperature for the solution? Options: 25 C, 30 C, 35 C, 50 C

Back

50 C

Front

According to the passage, the temperature at which gasoline condenses is most likely: less than 0 C, less than 40 C, greater than 20 C, greater than 70 C

Back

greater than 20 C

Front

According to Figure 1, fractional distillation uses which of the following as a raw material? Gasoline, Residue, Crude Oil, Gas Oil

Back

Crude Oil

Front

According to the passage, at what temperature is most of the crude oil vaporized?

Back

600 C

Front

According to the passage, as the vapor rises in the fractionating tower:

Back

the condensation temperature decreases only.

Front

Given that naptha, another by-product of petroleum distillation, has a condensation point of approximately 90◦C, between which two petroleum by-products would this substance be found in a fractionating tower? Options: Gasoline and kerosene, Lubricating oil stocks and gas oil, Kerosene and gas oil, Residue and lubricating oil stocks

Back

Gasoline and kerosene