Which substance can be decomposed by a chemical change? a. calcium

b. potassium

c. sodium

d. sodium chloride

For the reaction shown, find the limiting reactant for each of the following initial amounts of reactants. 4al(s)+3o2(g)→2al2o3(s) a) 1 molal, 1 mol o2 b) 4 molal, 2.6 mol o2 c) 16 molal, 13 mol o2 d) 7.4 molal, 6.5 mol o2

Areaction is first order with respect to reactant x and second order with respect to reactant y. which statement describes the rate law for this reaction?

To calculate percent by mass, use the equation below: calculate the percent by mass of each element. %n = % %h = % %o = %