Why are water molecules polar? select one: a. they contain two kinds of atoms. b. the electrons in the covalent bonds spend more time closer to the oxygen nucleus. c. the hydrogen bonds are weak. d. they have covalent bonds?

Working with si (metric) units for each of the following commonly used measurements, indicate its symbol. liter gram milliliter kilogram meter centigram milligram centimeter kilometer second millimeter milliseconds

When would a bouncy ball have the most potential energy

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?