Which statements best describe shared characteristics? Check all that apply.

How many ions that have a +1 charge will bond with an ion that has a -2 charge

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

What is avogadro’s number, and why is it useful