An object has a mass of exactly 5g on an analytical balance that has an accuracy of 0.1 mg. To how many significant figures should this mass be recorded

Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.

Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?

What term describes technology that operates on an atomic level