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AleksandrR [38]
2 years ago
14

Coal, oil, and natural gas are called _______.

Chemistry
2 answers:
zaharov [31]2 years ago
8 0

Answer:

I think it's A. I'm pretty sure.

Explanation:

Lady_Fox [76]2 years ago
5 0

Answer:

Coal, oil and natural gas are called _________A. fossil fuels

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Ions of an element (elements with different charges) contain different numbers of what
Vadim26 [7]

Answer:

an ion is an element that has different numbers of protons and electrons

Explanation:

An ion is positive when it has more protons than electrons and negative when it has more electrons than ions.

(Hope this was helpful!) :)

7 0
2 years ago
Explain transmethylation reaction of amino acids.
tester [92]

Answer:Transamination, a chemical reaction that transfers an amino group to a ketoacid to form new amino acids. This pathway is responsible for the deamination of most amino acids. This is one of the major degradation pathways which convert essential amino acids to non-essential amino acids (amino acids that can be synthesized de novo by the organism).

Explanation:

4 0
3 years ago
A. What is the pH of a solution with a [H+] of 6.8 x 10^-11?
inysia [295]

Answer:

[H+] = 6.8×10^-11

so, pH = - log[H+]

= - log [6.8×10^-11]

= -(-10.167)

= 10.167

6 0
2 years ago
Determine the percent composition by mass of a 100g salt solution which contains 20g salt
prisoha [69]

Answer:

Mass of solution=100g

mass of salt=20g

so; mass of solute=80g

percentage composition =(mass of salt/total

mass) ×100

=  \frac{20}{100}  \times 100 \\  = 20\%

glad to help you

hope it helps

8 0
2 years ago
Read 2 more answers
23. The number of protons in the nucleus of an atom is its...
almond37 [142]

The number of proton in the nucleus of an atom is its Atomic Number.

5 0
3 years ago
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