Which two particles of the atom have nearly identical masses? 

Which of the following quantities is equivalent to 594 mg? 

A chemist encounters an unknown metal. They drop the metal into a graduated cylinder containing water, and find the volume change is 6.90 mL. If the metal weighs 9.84 g, what is the density of the metal in g/mL? (Just put the number and no units.) 

The number 0.0509 has ___ significant figures.

Which of the following states of matter is pictured below? 

The density of water is approximately 1 g/cm³. Which of these substances will sink in water? 

According to lecture and lecture notes, which of the following is not one of the three core features of mindfulness?

The answer to the calculation below with the correct number of significant figures is: (Just put the number and no units.)

Which one of the following is an example of an element? 

“Laughing gas” (dinitrogen monoxide, also called nitrous oxide) is an example of a(n)