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____ [38]
2 years ago
7

What is hardest type of coal?

Chemistry
2 answers:
cricket20 [7]2 years ago
7 0
<span>Anthracite is the hardest type of coal.</span>
Veronika [31]2 years ago
7 0
Anthracite is the hardest type of coal
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The group of atoms that is responsible for the characteristic properties of a family of organic compounds is called a/an _______
Sindrei [870]

The group of atoms that is responsible for the characteristic properties of a family of organic compounds is called a <u>functional</u> group.

Functional groups are groups of one or extra atoms with exclusive chemical homes regardless of what's connected to them. The atoms of practical agencies are certain via covalent bonds with one another and with the relaxation of the molecule.

Functional groups include:

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An atom or institution of atoms that replaces hydrogen in a natural compound that defines the shape of a family of compounds and determines the properties of the family.

Learn more about functional groups here brainly.com/question/493841

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1 year ago
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It’s basically that’s any system that’s closed to all transfers of matter and energy the mass of the system has to remain constant over time because they can’t change meaning you can’t add or remove from it

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2 years ago
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Another carbon isotope has six protons and seven neutrons in its nucleus. What do you think this carbon isotope is called?
insens350 [35]

Answer:

Carbon - 13

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For most of the elements other than that of hydrogen, the isotopes are named for the mass number.

Example : Carbon atoms with 6 neutrons have mass number of 12 ( as 6\ protons +6\ neutrons=12 ), so they are known as carbon-12.

Given that:

Protons = 6

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So the name is Carbon - 13 . The symbol is ^{13}_{6}C

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