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Nezavi [6.7K]
3 years ago
15

When Ca+2 and O-2 form a compound what is the overall charge of the compound formed

Chemistry
1 answer:
defon3 years ago
5 0
<span>magnesium cations (Mg </span><span>2+</span>) and oxide anions (<span>O 2</span>−<span>)</span>
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Select the correct Answers.
Mandarinka [93]

Answer:

3. The temperatures of the two substances equalize.

Explanation:

  • As two objects at different temperatures are placed in contact, heat is transferred from the warmer to the cooler object until the temperature of the two objects be the same.
  • The amount of heat that is transferred from the warmer object is equal to the amount of heat that is transferred into the cooler object.
  • This is in agreement with the law of conservation of energy.
  • <em>So, the right choice is: 3. The temperatures of the two substances equalize. </em>

<em></em>

8 0
3 years ago
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yulyashka [42]

Answer:

option B

Explanation:

3 0
3 years ago
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. What happens the pH of an acid solution as a base is added?​
Dmitrij [34]

As a base is added to an acidic solution, the H+ ions in solution that make it acidic are slowly neutralized into water (via OH-, the base). As these ions are converted into water the concentration of them decreases, so the pH decreases, as they are directly related.

Hope this helps!

3 0
3 years ago
2. When vinegar is added to eggshells, carbon dioxide gas is produced.​Why?
skad [1K]

Answer:

same as his

Explanation:

4 0
3 years ago
Which element would be expected to have a similar physical and chemical properties as oxygen, and why?
soldi70 [24.7K]

Oxygen and Sulfur are in the same group.

Sulfur is the next element in the group, and it reacts with hydrogen gas (H2) in a manner similar to oxygen.

5 0
3 years ago
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