Jamiah drops a ball from 20 meters high. Then she drops the same ball 40 meters high. Which has more potential energy

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?

What is the mass of 0.46 mol of mgcl2