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mixer [17]
3 years ago
5

What is one result of a chemical change?

Chemistry
2 answers:
nikklg [1K]3 years ago
8 0
B. A new material is formed.
WINSTONCH [101]3 years ago
4 0
B.<span>A new material is formed.</span>
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A chemical reaction can theoretically produce 137.5 grams of product, but in actuality 112.9 grams are
Butoxors [25]
<h3>Answer:</h3>

82.11%

<h3>Explanation:</h3>

We are given;

  • Theoretical mass of the product is 137.5 g
  • Actual mass of the product is 112.9 g

We are supposed to calculate the percentage yield

  • We need to know how percentage yield is calculated;
  • To calculate the percentage yield we get the ratio of the actual mass to theoretical mass and express it as a percentage.

Thus;

% yield = (Actual mass ÷ Experimental mass) × 100%

            = (112.9 g ÷ 137.5 g) × 100%

            = 82.11%

Therefore, the percentage yield of the product is 82.11 %

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3 years ago
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I think it's 2:1 or 2:1:4. I mostly think it's 2:1 though. (:
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Most thermal conductors are made of which material?
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Most are made of copper.

Explanation:

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