What is the difference between a chemical reaction and a physical reaction?

2 answers:

8 0

A chemical reaction differs from a physical reaction because a chemical is a change in its genetic makeup which a physical reaction is a change in appearance such as color or form not the make of it.

sleet_krkn [62]3 years ago

3 0

One chemical action is burning wood. One physical action is like cutting paper.

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What makes gas turn into a liquid?

lesantik [10]

I would say compression or the absence of heat because heating a liquid makes it a gas

3 0

3 years ago

Write equations to show whether the solubility of either of the following is affected by pH: (b) Hg₂(CN)₂.

nata0808 [166]

Increasing pH will increase the solubility of the Hg2(CN)2 by shifting equilibrium to right side.

What is the meaning of OH in chemistry?

The chemical group, ion, or radical OH that consists of one atom of hydrogen and one of oxygen and is neutral or negatively charged.

Hg2(CN)2 + 2OH- ----> 2HgO(s) + 2HCN

adding OH- to the mercury(l) cyanide will cause the formation of the solid HgO.

therefore increasing pH will increase the solubility of the Hg2(CN)2 by shifting equilibrium to right side.

Learn more about OH

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3 0

1 year ago

How can I find the answer for this ?

12345 [234]

For what? what is your question

7 0

3 years ago

Arrange ZN HG CU AU metals in order of decreasing activity with the most active first

Andrej [43]

AU ZN CU HG

Explanation:

hope it helps you

6 0

3 years ago

What is the molality (m) of a solution that contains 76.5 g of KCl dissolved in 85.0 g of water?

ladessa [460]

Answer:

76.5g KCl/74.55 grams per mole Kcl = x

molality= x/.085 kg H2O

Explanation:

well remember molality is moles of solute/kilograms of solvent. So it's the moles of KCl over 85 g of h20 converted into kg. if this makes sense.

5 0

3 years ago