Question

A welder has 1.873 × 102 g Fe2O3 and 94.51 g Al in his welding kit. Which reactant will he run out of first?

Answer 1

Fe2O3 only hope this helps 

Answer 2

Al

Step-by-step explanation:

The quantities in grams of each reactants are

`94.51 g Al`

`1.873.10^2 g Fe_2SO_3`

The grams of
`Fe_2SO_3` are expressed in scientific notation

Since the power of ten is positive and is iqual 2 we must run the comma two spaces to the right

`1,873.10^2= 187,3g Fe_2SO_3`

Quantities of reactans expressed without scientific notation

`94.51 g Al\\187,3 g Fe_2SO_3`

The amount in grams of Al is less than the amount of
`Fe_2SO_3` therefore it will be finished first.