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aniked [119]
3 years ago
7

Describe how Fossil fuels supply chemical potential energy and transform it into thermal energy

Chemistry
1 answer:
Kruka [31]3 years ago
6 0

Explanation:

fossil fuels produce oil which is a chemical energy source. oil can be a by product of petrol which means when burnt can produce heat

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3 years ago
Percent yield of 0.20 g of Al
elena-14-01-66 [18.8K]

Answer:

the dividend yield is 4%

Explanation:

The computation of the dividend yield is as follows:

Dividend yield = Dividend per share ÷ current share price per share

= ($0.20 × 4 quarters) ÷ $20

= $0.80 ÷ $0.20

= 4%

hence, the dividend yield is 4%

The same is determined by applying the above formula

7 0
3 years ago
Exit Calcium has an atomic number of 20. How many electrons of a calcium atom are involved in chemical bonding? A. 2 B. 8 C. 16
Colt1911 [192]

A. 2 is the answer let me know if im wrong sorry if i am.

6 0
3 years ago
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Refer to a periodic table. In which period is calcium?<br> 6<br> 4<br> 2<br> 8
kvasek [131]

Here look at this image it might help you if not then i will see what i can help you with

6 0
3 years ago
Which of the following increases as the concentration of a colored solution increases? wavelenght transmittance absorbance b) A
iris [78.8K]

Answer:

a) Absorbance

b) The absorb light most strongly in 580nm

Explanation:

Beer-Lambert law relates concentration with light absorbance. The more concentrated solution are the more molecules and the most absorbance.

Wavelenght depends of composition of solution and doesn't change with different concentrations of the same solution.

Transmittance is inversely proportional to absorbance. Thus, the more concentrated solution the less transmittance.

Colored compounds are absorb energy of visible radiation. The colour that we see is a  result of the absortion of complimentary colour (Colour wheel). Thus, a blue-green solution absorb energy of ≈600 nm. Thus, the absorb light most strongly in 580nm.

I hope it helps!

6 0
4 years ago
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