A fine of 50.0 mL of 0.0900 M CaCl2 reacts with excess sodium carbonate to give 0.366 g of calcium carbonate precipitate. What is the percent yield?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

12. calculate the hydroxide ion concentration of a solution with ph = 3.25. show all calculations leading to an answer

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.