The first part of a balanced chemical equation is shown: H2SO4 + 2NaOH → For the equation to be balanced, how many hydrogen (H) atoms must be present in the
products?
H2SO4 + 2NaOH →
H=
H=

6. using 3 – 4 sentences explain (in your own words) why water expands when it freezes? 7. using your knowledge of colligative properties explain whether sodium chloride or calcium chloride would be a more effective substance to melt the ice on a slick sidewalk. use 3 – 4 sentences in your explanation.