Chemistry Hesi A2

Questions 25

HESI A2

HESI A2 Test Bank

Chemistry Hesi A2 Questions

Question 1 of 5

The molar mass of some gases is as follows: carbon monoxide-28.01 g/mol; helium-4.00 g/mol; nitrogen-28.01 g/mol; and oxygen-32.00 g/mol. Which would you expect to diffuse most rapidly?

Question 2 of 5

What is the charge of a gamma ray?

Question 3 of 5

Which substance shows a decrease in solubility in water with an increase in temperature?

Question 4 of 5

A radioactive isotope has a half-life of 20 years. How many grams of a 6-gram sample will remain after 40 years?

Question 5 of 5

What does a blood sample with a pH of 3 indicate?

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