How do you solve 4.053g divided by 4.2mL

When a comet collides with earth, it adds material to our planet and causes great damage. therefore, a collision like this is a a. destructive force b. constructive force c. geologic process and event d. constructive and destructive force

Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )

Match the mixture with the substance// i really need on this guys (it’s a pic btw)