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(Explanation of how the answer came, also needed)

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?

Which of the following is true about the speed of light? it depends on the wavelength.