In the synthesis of barium carbonate from an alkali metal carbonate (M2CO3 where M is one of the alkali metals) a student generated 3.7 g of barium carbonate from 2.0 g of their alkali metal carbonate. M2CO3(aq) + BaCl2 (aq) --> 2MCl (aq) + BaCO3(s) How many moles of alkali metal carbonate were reacted? Question 3 options: 0.019 mol 0.038 mol 0.094 mol 2.3 mol

Iwll give extra points to who gets this for ! what type of reaction is this? ?

You have a sample of a metal, the sample is exactly 6.02 x 1023atom, if the sample has a mass 55.85 what metal is your sample made of?

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.