3 years ago

Metamorphism can best be defined as

Chemistry

1 answer:

Brilliant_brown [7]3 years ago

5 0

Answer:

The answer is D if it's wrong let me know pls

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Element X has two isotopes. If 72.0% of the element has an isotope mass of 84.9 atomic mass units, and 28.0% of the element has

bija089 [108]

<h2>Answer:</h2>

Average atomic mass of an element is the sum of the masses of its isotopes each multiplied by its natural abundance

$\footnotesize \longrightarrow \: \rm Average \: atomic \: mass = \dfrac{ \sum\limits \: \% age \: of \: each \: isotope \times Atomic \: mass }{100} \\$

$\footnotesize \longrightarrow \: \rm Average \: atomic \: mass = \dfrac{ 72 \times84.9 + 28 \times 87 }{100} \\$

$\footnotesize \longrightarrow \: \rm Average \: atomic \: mass = \dfrac{ 6112.8 + 2436 }{100} \\$

$\footnotesize \longrightarrow \: \rm Average \: atomic \: mass = \dfrac{ 8548.8 }{100} \\$

$\footnotesize \longrightarrow \: \bf Average \: atomic \: mass = 85.488 \: amu \\$

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2 years ago

Which of these reactions successfully models a nuclear fission reaction?

user100 [1]

Answer:

OPTION B

Explanation:

Nuclear "fission" is the breakdown of the nucleus of a radioactive element into two or more nuclei accompanied by the release of energy. I guess that pretty much explains it.

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2 years ago

0 Balance the following equation: CO2 (g) + H2O (1) → C12H24012 (s) + O2 (g) +

Drupady [299]

Explanation:

Answer: 12CO2(g) +12H2O(l)->C12H24O12(s)+12O2(g)

Once you make balancing equations don't disturb the given numbers because it is fix you need to solve by the side of the chemical name.

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2 years ago

PLEASE HELP: Which is the state change that occurs when a solid becomes a gas without becoming a liquid first?

nekit [7.7K]

It is called sublimation

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2 years ago

Help please <br> Cu + S CuS

SCORPION-xisa [38]

Answer:

Hi.. U should do like this

Cu + S - - - >Cu2S

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3 years ago