How does an atom become an ion with a - 2 charge?

A graduated cylinder was filled with 25.0 mL of liquid. A solid object weighing 73.5 g was immersed in the liquid, raising the liquid level to 43.9 mL. Calculate the density of the solid object.

What was Yuan T. Lee's contribution to chemistry

Whats the difference from a physical change and a chemical change

Explain in detail the differences & similarities between Fission & Fusion

How do fossils fuels contribrute to air population?

How do carbon-12 and carbon-13 differ? Select all that apply. They have different amounts of neutrons. They have different atomic charges. They have different mass numbers. They have different amounts of electrons.

Why arent the jaguars and sloths growing and thriving?

If a spoon is hot after leaving it on the pot that was on the stove. What heat transfer is that.

If a small amount of ferrous ammonium sulfate is spilled when transferring

List one reason as to why historical growth has slowed in recent years.