I need some help with my science homework. (only with a few questions) 1.) Explain how the temperature in the morning would make it a good idea to water your plants then.

2.) Explain how a snowflake might end up as groundwater.

3.) List the two parts of the water cycle that are responsible for forming:
A) Rivers: and
B) Clouds: and

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?