Select the correct answer. What is the purpose of the arrow in a chemical equation?
OA. It indicates the direction in which the reaction occurs.
OB. It separates the elements from the compounds.
O c. It indicates the direction of increase in the number of molecules.
OD. It indicates the direction of heat movement in a reaction.

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?

What is the percentage of hydrogen in nitrogen trihydride

Which of the following are good traits of a hypothesis? it will be able to be testedit can predict an outcomeit will explain the observationsall of these