If 46 grams of na and 71 grams of cl2 we are completely what is the total mass of nacl produced

Explanation:

According to law of conservation of mass, mass of reactants will be equal to the mass of products, that is, mass can neither be created nor it can be destroyed. As it can only be transformed from one form to another.

So, when 46 grams of Na and 71 grams of combine together then it results in the formation of NaCl.

The total mass of NaCl formed will be 46 g + 71 g = 117 g

Thus, we can conclude that total mass of NaCl produced is 117 g.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.