PLEASE HELP ME ANSWER THE TWO MULTIPLE CHOICE QUESTIONS!!! ITS FOR CHEM:(

I’LL GIVE BRAINIEST:)

There are main groups in the modern periodic table of elements

What must be in balance for temperatures to remain constant?

Percent ionization for a weak acid (ha) is determined by the following formula: percent ionization=[ha] ionized[ha] initial×100%for strong acids, ionization is nearly complete (100%) at most concentrations. however, for weak acids, the percent ionization changes significantly with concentration. the more diluted the acid is, the greater percent ionization.a certain weak acid, ha, has a ka value of 9.4×10? 7.part acalculate the percent ionization of ha in a 0.10 m solution.part bcalculate the percent ionization of ha in a 0.010 m solution