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Molodets [167]
3 years ago
7

Need help with these two problems

Chemistry
1 answer:
maw [93]3 years ago
7 0
1.The atomic numbers
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Chemical reaction...

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Identify the following changes as physical or chemical. A loaf of risen but unbaked bread. Photo by Elinor D Bread dough rising:
sergey [27]

The answers include:

  • A loaf of risen but unbaked bread - chemical change.
  • Photo by Elinor D - chemical change.
  • Bread dough rising - chemical change.

<h3>What is a Chemical change?</h3>

This involves the formation of a new products from substances. In this scenario, a rising bread contains alcohol which evaporates.

Photographs also fall under this category and is therefore an irreversible chemical change.

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2 years ago
Answer the in under 30 minutes and I will give brainliest
gtnhenbr [62]

Answer: I believe the answer is an earthquake.

Explanation: Sorry If I am wrong!

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In a bottle of coke which would you expect to be higher, the concentration of H+ or the concentration of OH+? Why?
motikmotik

Answer: I don’t really know

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I don’t know sorry

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3 years ago
A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided
Mademuasel [1]

A measure of peak separation in a chromatographic method that equals the difference in retention time for two components divided by the average of their peak widths is the definition of resolution.

Retention time can be referred to as the amount of time a solute spends in the stationary and mobile phases of a column.

The analyte's interaction with the stationary phase determines the longer retention period.

The duration of retention will increase as the interaction becomes more strong.

Resolution is defined as the peak separation in a chromatographic procedure that is equal to the difference in retention time for two components divided by the average of their peak widths.

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