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olganol [36]
3 years ago
12

Is table salt a mixture ? True False

Chemistry
1 answer:
Mama L [17]3 years ago
7 0

Answer:

True

Explanation:

Table sugar and table salt are pure substances....When elements chemically combine, they form compounds that have properties that are similar to those of the uncombined elements.

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A reaction in which small nuclei combine to form a heavier nucleus is called______
Novay_Z [31]

Answer:

The answer to your question is: Nuclear fussion

Explanation:

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Examination of a cell by transmission electron microscopy reveals a high density of ribosomes in the cytoplasm. This observation
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Answer:

The answer is the B. Proteins

Explanation:

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3 years ago
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Ghella [55]

Answer:

The third one

Explanation:

7 0
3 years ago
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Solid calcium carbonate (CaCO3) reacts with hydrochloric acid (HCI) to form carbon dioxide, water, and
Pavlova-9 [17]

Using a more concentrated HCl solution and Crushing the CaCO₃ into a fine powder makes the reaction to occur at a faster rate.

<u>Explanation:</u>

CaCO₃(s) + 2HCl(aq) → CaCl₂(aq) + H₂O(aq) + CO₂(g)

When calcium carbonate reacts with hydrochloric acid, it gives out carbon-dioxide in the form of bubbles and there is a formation of calcium chloride in aqueous medium.

The rate of the reaction can be increased by

  • Using a more concentrated HCl solution
  • Crushing the CaCO₃ into a fine powder

When concentrated acid is used instead of dilute acid then the reaction will occur at a faster rate.

When CaCO₃ is crushed into a fine powder then the surface area will increases thereby increasing the rate of the reaction.

3 0
3 years ago
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