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DiKsa [7]
3 years ago
12

Ivan wants to test how the amount of water consumed each day affects the number of facial blemishes people receive over a month.

He gathers 12 people and divides them into 3 groups. He keeps everything the same for each group except for daily water and food intake. Throughout the month, Ivan tallies the number of facial blemishes each individual receives. The table details how Ivan changed the independent variables for each group. Note: Group 1 is Ivan's control group. What error did Ivan make in the design of his inves
Chemistry
2 answers:
german3 years ago
7 0
He didn’t keep food intake the same which is important because diet can effect skin problem
Viktor [21]3 years ago
6 0
Some people naturally have more or less blemishes than others because of genes
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pentagon [3]

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Explanation:

This is the answer

5 0
2 years ago
Claims · Evidence • Reasoning A student
sashaice [31]
As with the properties of a substance, the changes that substances undergo can be classified as either physical or chemical. During physical changes a substance changes its physical appearance, but not its composition. The evaporation of water is a physical change.

(I searched that up but here’s an explanation with my own words that you can use):

Change in matter can be classified as a physical change as well as a chemical change due to the properties of substance. A physical change changes substance within its appearance but not its composition. For an example: The evaporation of water is a physical change.

There you go hopefully that helped
3 0
3 years ago
8.3 miles of sodium chloride in 0.65 of water.
Allisa [31]

Answer:

12.77 M

Explanation:

8.3 moles of NaCl in .65 L of water ?    Looking for M ?

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4 0
2 years ago
What is the mass of oxygen in 10.0 grams of water?
skelet666 [1.2K]

Answer:

The answer is 16.00 amu.

7 0
3 years ago
When sodium bonds with chlorine, what is the chlorine electron configuration like?A. any other halogenB. neonC. argonD. radon
Vika [28.1K]

Answer:

C

Explanation:

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Normally, chlorine has 17 electrons, by adding one , we get 18 electrons.

This is the number of electrons for Argon

5 0
2 years ago
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