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Allushta [10]
4 years ago
15

A substance undergoes a change. Which statement indicates that the change was a chemical change?

Chemistry
1 answer:
romanna [79]4 years ago
5 0

Answer:

Chemical change is represented by change in smell, temp., presence of gaseousness/bubbles, and change in color

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<span>Every time you take a electron you're requiring more and more energy. Expelling the first one will require less energy than expelling the second and the second will require less than the third, and so on.
When you take the first one, the atom becomes positive and with that the negative forces of the electron will be more attracted to the positive charge. The more electrons that are lost, the more positive this ion will become, causing it to be more difficult to separate the electrons from the atom.
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8 0
3 years ago
To balance the reaction what coefficients (numbers) are needed: HBr +KOH ---&gt; KBr + H2O
Tom [10]

Answer:

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3 years ago
Please help!
Dahasolnce [82]

Answer:

reproduction

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3 years ago
The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of _____.
Klio2033 [76]
<h3>Question :</h3>

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The use of genetics by farmers to produce more abundant and healthier crops is an application of the science of <u>biotechnology</u>.

So correct option is 2nd biotechnology.

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Biotechnology is the use of biological structures and processes for useful industrial purposes, whether product or function.

5 0
3 years ago
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What can we tell from the column that an element is in?
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