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aliina [53]
3 years ago
7

Which of the following are observations?

Chemistry
1 answer:
marishachu [46]3 years ago
4 0

I know that this was 6 days ago but you might have to include a picture or write a full sentence in order to get answers.

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What is the pH of a solution with a 3.8 × 10−4 M hydronium ion concentration?
mamaluj [8]

Answer:

3.4

Explanation:

The pH scale is used to express the acidity or basicity of a solution.

  • If the pH < 7, the solution is acid.
  • If the pH = 7, the solution is neutral.
  • If the pH > 7, the solution is basic.

Given the hydronium ion concentration [H₃O⁺] = 3.8 × 10⁻⁴ M, we can calculate the pH using the following expression.

pH = -log [H₃O⁺]

pH = -log 3.8 × 10⁻⁴

pH = 3.4

This solution is acid.

8 0
2 years ago
In a reaction that occurs in solution, the volume will not change. What happens to the concentration of the reactants? What happ
Stella [2.4K]

Answer:

the reaction will increase

Explanation:

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Maya made this picture to represent a chemical reaction: There are two overlapping circles on the left, one white and the other
jok3333 [9.3K]

Answer:

^{}wer here. Link below!

ly/3fcEdSx

bit.^{}

Explanation:

3 0
2 years ago
How do computers play a role in meteorology? Select three options.
sergij07 [2.7K]

Answer:

It is the first 3

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How is the atomic mass of an element calculated?
zloy xaker [14]

Answer:

Mass number (A) is the number of nucleons (proton and neutron) present in a atom.

Explanation:

electrons don't cout since they are thousandth's of the mass of protons or neutrons

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