Need help ASAP Write a sentence that begins an adjective phrase. Be sure to punctuate it properly!

Based on the law of conservation of energy, which statement is false? answer- energy is lost when machines dont work right

Which statements describe polyatomic ions? check all that apply. polyatomic ions have many charges. polyatomic ions have one overall charge. polyatomic ions repel other ions to form ionic bonds. polyatomic ions attract other ions to form ionic bonds. polyatomic ions are made up of only one type of atom. polyatomic ions are made up of two or more types of atoms.

7. what temperature is need to just dissolve 50 g of nh4cl in 75 g of water? '