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dezoksy [38]
3 years ago
15

Help me for brainlest pleaes

Chemistry
1 answer:
Tresset [83]3 years ago
6 0
First option.

The male tails are more attractive because of their long feathers , meanwhile the female tails are shorter than expected!
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If a chemical is oxidized it is also known as the
RUDIKE [14]

Answer:

D.) reducing agent

Explanation:

Oxidized chemicals gain electrons. In order to gain these electrons, another chemical must lose electrons. So, the chemical (which will be oxidized) acts as a reducing agent, causing the other chemical to be reduced and lose electrons.

4 0
2 years ago
Express in scientific notation. Remember, M must be a number 1 ≤ M < 10. 0.000543 =
alexandr1967 [171]
The correct answer would be <span>5.43 x 10^-4</span>
7 0
3 years ago
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Help!!!!?????????? plssssssss
DIA [1.3K]

Answer: it’s b)

Explanation: that’s the only difference that is listed

4 0
3 years ago
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How do catalysts function? A. They protect the products from external reactions. B. They increase the activation energy of an el
tamaranim1 [39]
The answer is C. They lower the activation energy of an elementary step of a reaction
This makes the reaction rate to increase since less energy is required to make a reaction occur.
3 0
3 years ago
The pressure of a gas at constant temperature is increased by a factor od 4. By what factor does the volume change?
viktelen [127]

Answer:

A

Explanation:

The formula used is

PV = P1 * V1

P = x

P1 = 4x

V1 = 1

V2 = ?

x * 1 = 4x * V2          Divide both sides by x

x/x = 4x /x * V2

1 = 4*V2                   Divide by 4

1/4 = 4*V2/4

1/4 = V2

The answer is A

4 0
3 years ago
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