Consider the equation: a+> 4c. if 3.0 moles of a is reacted with 6.0 moles of b, which of the following is true after the reaction is complete? explain your answer.
a.) a is the leftover reactant b/c you only need 2 moles of a and have 3.
b) a is the leftover reactant b/c for every 1 mole of a, 4 moles of c are produced.
c) b is the leftover reactant b/c you have more moles of b than a.
d) b is the leftover reactant b/c 3 moles of b react with every 1 mole of a.
e) neither reactant is leftover.

Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins. co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)

Cryolite, na3alf6(s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. start this question by first balance the chemical equation.1.) balance the equation: - alo3(s)+naoh(l)+hf(> na3alf6+h2o(g). 2.) if 17.5 kilograms of al2o3(s), 51.4 kilograms of naoh(l), and 51.4 kilograms of hf(g) react completely, how many kilograms of cryolite will be produced? 3.)which reactants will be in excess, (al2o3, naoh, or hf) 4.)what is the total mass of the excess reactants left over after the reaction is complete in kg?

An atomic nucleus is composed ofa)protons. b)protons and neutrons. c)protons and electrons. d)protons, neutrons, and electrons.