When a sponge gets wet, does it become more massive

U have a lead ball with a mass of 420 g. The density of lead is 10.5 g/cm3. What is the volume of the ball?

When two clear liquids were combined in a beaker, the temperature increased and a yellow powder formed. this most likely means that?

Calcium chloride contains calcium and chloride ions. write the ground-state electron configuration for the chlorine ion.

Identify a semicircle that contains C

What is the name of this compound XeF4?

How many grams of water are needed to react with 485 g of calcium carbide

Water molecules have a strong attraction to each other because of hydrogen bonding, allowing water to move against gravity up a plant's stem through capillary action. True False

What happens when an electric field is applied to a very polar molecule?

Which particles have approximately the same mass?

Which observation provided Albert Einstein the clue that he needed to explain the photoelectric effect