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Effectus [21]
3 years ago
11

Procedure for the experiment.

Chemistry
1 answer:
Elis [28]3 years ago
5 0

Answer:

A solid residue of limestone and some gypsum.

Explanation:

In step 2, some of the limestone and gypsum in the chalk dissolve in the water. When the mixture is filtered, the dissolved substances remain in the water. When the water is boiled off or evaporated, the solid substances remain behind.

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Answer:

c

Explanation:

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Answer:

True.

Explanation:

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3 years ago
Acetic acid and water react to form hydronium cation and acetate anion, like this:
OverLord2011 [107]

Answer:

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Explanation:

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8 0
2 years ago
Definition of chemical change
yuradex [85]

Answer:

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

Explanation:

8 0
3 years ago
The combination of all frequencies of visible light makes
sashaice [31]

Answer:The visible light contains 7 colours  :  Violet, indigo, Blue, Green, Yellow, Orange and Red.

White colour is formed by the interference of all 7 colours, thus white light has the combination of all frequencies of visible light.

Explanation:

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3 years ago
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