ACT Science

Multiple Choice

What gas is produced when certain substances are added to diet cola?

• $$H_2O$$  

• $$CO$$  

• $$CO_2$$  

• $$SO_2$$  

Multiple Choice

One millimole of CO₂ has a mass of 0.044 g. How many trials resulted in the production of at least 1 millimole of CO₂?

• 1

• 4

• 5

• 8

Multiple Choice

The important information necessary to answer a question is referred to by your workbook as a...

• hypothesis

• sign post

• clue

• road sign

Multiple Choice

Is the relationship between the volume of liquid in the cylinder at the end of the experiment and the mass of CO₂ produced a direct relationship or an inverse relationship?

• Direct; as the volume of liquid in the cylinder increased, the mass of CO₂ produced increased

• Direct; as the volume of liquid in the cylinder increased, the mass of CO₂ produced decreased

• Inverse; as the volume of liquid in the cylinder increased, the mass of CO₂ produced increased

• Inverse; as the volume of liquid in the cylinder increased, the mass of CO₂ produced decreased

Multiple Choice

Which substance added to the diet cola produced the least CO₂?

• chalk

• sugar cube

• fruit candy

• mint candy

Multiple Choice

If another trial is conducted where the temperature is 70° C, what do you predict will happen to the volume of liquid in the cylinder and the mass of CO₂ produced?

• The volume of liquid will increase and the mass of CO₂ will decrease.

• The volume of liquid will decrease and the mass of CO₂ will increase.

• The volume of liquid will increase and the mass of CO₂ will increase.

• The volume of liquid will decrease and the mass of CO₂ will decrease.

Multiple Choice

If another trial had been performed in Experiment 2 and 450 mL of liquid had been measured in the cylinder, the temperature of the diet cola in this trial would most likely have been:

• less than 25°C.

• between 25°C and 45°C

• between 45°C and 60°C

• greater than 60°C

Multiple Choice

Assume that room temperature is 25°C. In how many trials was the diet cola tested at a temperature lower than room temperature?

• 1

• 2

• 5

• 8

Multiple Choice

Which of the following is true about Trials 1-4?

• they measured the amount of $$H_2O$$   produced based on different items added

• they measured the amount of $$CO_2$$  produced based on different items added

• they measured the amount of $$CO_2$$  produced based on the temperature

• they measured the amount of $$H_2O$$   produced based on the temperature

Multiple Choice

Which of the following is true about Trials 5-8?

• they measured the amount of $$H_2O$$   produced based on different items added

• they measured the amount of $$CO_2$$  produced based on different items added

• they measured the amount of $$CO_2$$  produced based on the temperatur

• they measured the amount of $$H_2O$$   produced based on the temperature