Answer:
C
Explanation:
Well, we can see from the equation that hydrogen gas and ethane are in a 2:1 ratio based on their mole coefficients.
You need 2 mol H2 to make 1 mol C2H6. So that means you need 2*13.78 mol H2 to make 13.78 mol C2H6!
2*13.78 = 27.56 mol
C is correct.
I'm pretty sure it's A, but then again I'm only in 8th grade. Sorry if this doesn't help:(
<span>Not all solids melt when they are heated. Some may undergo chemical changes as a result of heating. For example paper burns rather than melts</span>
Answer:
2.016 g/mol
Explanation:
Avogadro number
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
1.008 g of hydrogen = 1 mole = 6.022 × 10²³ atoms of hydrogen
For H₂:
2.016 g of H₂ = one mole of hydrogen gas = 6.022 × 10²³ molecules of hydrogen
When polymers are broken down into monomers, <u>the body uses those monomers for a number of activities. Some of them include protein construction and respiration. </u>
For proteins, the monomers are amino acids. Polymerization occurs at ribosomes. Usually about 20 types of amino acid monomers are used to produce proteins.
<em>The process of polymers breaking down to monomers is called hydrolysis.</em>
