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SVEN [57.7K]
3 years ago
13

Which is NOT a chemical reaction?

Chemistry
2 answers:
Sophie [7]3 years ago
6 0
A is correct because there is no reaction involved
Art [367]3 years ago
4 0
The answer is a no chemical reaction
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The actual density of iron is 7.874 g/mL. In a laboratory investigation, Jason finds the density of a piece of iron to be 7.921
mixas84 [53]

The percent error associated with Jason’s measurement is 0.596%.

HOW TO CALCULATE PERCENTAGE ERROR:

  • The percentage error of a measurement can be calculated by following the following process:
  1. Find the difference between the true value and the measured value of a quantity.
  2. Then, divide by the true value and then multiplied by 100

  • The true value of the density of iron is 7.874 g/mL
  • Jason observed value is 7.921 g/mL

Difference = 7.921 g/mL - 7.874 g/mL

Difference = 0.047 g/mL

Percentage error = 0.047/7.874 × 100

Percentage error = 0.596%.

Therefore, the percent error associated with Jason’s measurement is 0.596%.

Learn more: brainly.com/question/18074661?referrer=searchResults

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What is the number assigned to an element on the Periodic Table?
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Element Atomic Number One number you will find on all periodic tables is the atomic number for each element.

Explanation:

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_____ is the measurement of the density of a substance as compared to water.
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