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Novosadov [1.4K]
3 years ago
11

Coal is a naturally forming rock. It is formed millions of years ago from the remains of plants. Coal is mined from the earth an

d then burned for energy. Which sentence from the passage describes how people change the earth’s surface?
Coal is a naturally forming rock.

It is formed millions of years ago from the remains of plants.

Coal is mined from the earth and then burned for energy.​
Chemistry
1 answer:
Feliz [49]3 years ago
4 0

Answer:

Coal is mined from the earth and then burned for energy

Explanation:

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B. Heating up the reaction will increase the entropy of a reaction.

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1) is called 3-methyl hexane because we choose the longest possible continuous chain which has 6 carbons and start numbering from the side that gives the branch lowest possible number.

2) is called 2-methyl-2-butene because we have to give the double bond lowest possible number but in this case double bond in position 2 from both sides so we start from the side gives the branch number 2 not 3

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In the case of the given equation, we have to find out whether it is balanced or not.

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Atoms       Number of atoms before balancing     after balancing

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N               1                        2                                            2              2

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To balance the N atoms, we have to put 2 in front of NH₂, and then to balance the H, O atoms, we have to put 2 in front of H₂O, so that each atom in left hand as well as right hand side of the equation was balanced.

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