A student combined 3.5 g sodium nitrate with 500 mL water and mixed them thoroughly. The resulting liquid was clear and colorless. Which of the following is true?

A. The sodium nitrate acted as a solute that dissolved in the water to make a solution.
B. The sodium nitrate acted as a solvent that dissolved in the water to make a solution.
C. The sodium nitrate reacted with the water to make a new substance.
D. The sodium nitrate fell to the bottom of the container, leaving the water clear and colorless.

Calculate the ratio of h+ ions to oh– ions at a ph = 7. find the concentration of h+ ions to oh– ions listed in table b of your student guide. then divide the h+ concentration by the oh– concentration. record this calculated ratio in table a of your student guide. compare your approximated and calculated ratios of h+ ions to oh– ions at a ph = 7. are they the same? why or why not? record your comparison in table a. what is the concentration of h+ ions at a ph = 7? mol/l what is the concentration of oh– ions at a ph = 7? mol/l what is the ratio of h+ ions to oh– ions at a ph = 7? : 1

Ahypothesis must be testable and falsifiable to be considered scientific a. trueb. false

The chemical equation below shows the reaction of sodium (na) and chlorine (cl) to form sodium chloride (nacl). 2na + cl2 → 2nacl in this equation, which of the following is a reactant? i. sodium ii. chlorine iii. sodium chloride