Convection occurs in the Earth. Convection currents in the magma help power plate tectonics.
<u>Answer:</u> The correct answer is 
<u>Explanation:</u>
We are given:
Moles of hydrogen gas = 4 moles
As, oxygen is given in excess. Thus, is considered as an excess reagent and hydrogen is considered as a limiting reagent because it limits the formation of products.
For the given chemical equation:
By Stoichiometry of the reaction:
2 moles of hydrogen produces 2 moles of water molecule.
So, 4 moles of hydrogen will produce = 
of water.
Hence, the correct answer is
Answer:
8 waffles
Explanation:
First, find the limiting reagent. Divide the amount you have by the amount that is needed. The smallest number is the limiting reagent. <u>For this problem, the limiting reagent is oil.</u>
6 cups of flour/2 cups of flour = 3
9 eggs/3 eggs = 3 2 tbsp of oil/1 tbsp of oil = 2
This means that we can double the recipe since we have enough of each ingredient to make two batches. Multiply the entire equation by 2. This should give you 4 cups of flour + 6 eggs + 2 tbsp of oil ==> 8 waffles.
<u>You should theoretically get 8 waffles.</u>
