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spin [16.1K]
2 years ago
8

When looking at a chemical reaction, the substance present before the reaction takes place are called the (5) and the substance

produced after the reaction are the (6). We know through the Law of Conservation of (7) that nothing is created or destroyed. This is reflected in a (8) chemical equation, where the atom number of each element on each side of the arrow is (9)-or the same.
Chemistry
1 answer:
faltersainse [42]2 years ago
4 0

Answer:

Explanation:

When looking at a chemical reaction, the substance present before the reaction takes place are called the (5)

REACTANT

and the substance produced after the reaction are the (6).

PRODUCT

know through the Law of Conservation of (7)

MATTER

that nothing is created or destroyed. This is reflected in a (8

BALANCED

chemical equation, where the NUMBER OF  atoms of each element on each side of the arrow is (9)-

equal

or the same.

REMEMBER: WHEN BALANCING EQUATIONS YOU CANNOT CHANGE THE SUBSCRIPTS OF THE COMPOUNDS, YOU CAN ONLY SHOW BY THE COEFFICIENTS HOW MANY MOLECULES YOU HAVE!

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A container holds 6.4 moles of gas. Hydrogen gas makes up 25% of the total moles in the container. If the total pressure is 1.24
Degger [83]
  The   partial  pressure of hydrogen is 0.31  atm

calculation

find the number of  hydrogen   moles the container, that is

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6 0
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2C4H10 + 13O2  →  8CO2 + 10H2O Since the equation is balanced, we can set up a proportion: 13 moles of O2 react with 2 moles of C4H10x  moles of O2 react with 0.425 moles of C4H10 13 → 2x → 0.425 x = 13 * 0.425 / 2 = 2.7625 <span>2.7625 moles of O2 react with 0.425 moles of C4H10</span> 
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Answer:

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