Each Barium atom loses 2 valence electrons and each nitrogen atom gains 3 valence electrons to form barium nitride. Use the criss cross method to determine the chemical formula for barium nitride ​

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

Which of the following is the correct definition of chemical energy? a. energy an object has because of its motion or position b. energy resulting from the flow of charged particles, such as electrons or ions c. energy produced from the splitting of atoms d. energy stored in chemical bonds of molecules