Is li, an, and k a group or period

Sodium atom has lower electron affinity than chlorine atom why?

What is the mass number of an atom of 5 protons and 7 nuetrons

What are the three major fossil fuels?

What would you call a solution that contains 359 g/l nacl at 25 c?

A pH of 2 indicates a (n) - weak acid strofing acid weak base strong base

Sodium chloride is stirred into water to form a solution. in this case, what are sodium chloride and the water?

What can form as a result of a chemical reaction?

A solution of orange juice that weighs 500 g contains liquid juice and solid pulp. All of the pulp is removed from the juice. The pulp is found to weigh 50 g. How much would the remaining liquid juice weigh? A. 50 g B. 250 g C. 450 g D. 500 g

Assume 3 molecules of Fe react according to the following equation. 3Fe + 4H2O Fe3O4 + 4H2 How many molecules of H2 are produced? How many water molecules are required? What is the mole ratio of Fe to H2O?

10.0 mL of a HF solution was titrated with a 0.120 N solution of KOH; 29.6 mL of KOH were required to completely neutralize the HF. Calculate the normality of the HF solution.