2questions:

1. 4 fe(s) + 3o2(g) --> 2fe2o3(g)

in a certain reaction, 27.3 g of iron is reacted with 45.8 g of oxygen

how many grams of the excess reactant remain after the reaction is complete

2. n2 (g) + 3h2 (g) --> 2 nh3 (g)

the equation above is the equation for the haber process.

in a certain reaction, you start with 3.0 moles of nitrogen and 5.0 moles of hydrogen,. how many moles of ammonia will be produced in the reaction?

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Given sno2 + 2h2 - sn + 2h20 tin oxide reacts with hydrogen to produce tin and water. how many moles of sno2 are needed to produce 500.0 grams of sn?