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amm1812
3 years ago
15

Which best describes how magnesium (Mg) and oxygen (O) bond?

Chemistry
1 answer:
Ksivusya [100]3 years ago
8 0

Answer:

a

They form an ionic bond by exchanging two electrons.

Explanation:

Magnesium loses two electrons and oxygen gains these electrons so ionic bond is formed

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Methane burns in oxygen to produce carbon dioxide and water. Which of the following represents a preliminary, unbalanced equatio
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The correct option is: CH4 + O2 → CO2 + H2O.

In writing chemical equations, the reactants are usually written to the left of the equation of the reaction while the products are written to the right of the reaction. An arrow pointing in the right direction shows the direction of the reaction. In the question given above, methane and oxygen are the reactants while carbon dioxide and water are the products. The options that states the chemical reaction correctly is option 1.

3 0
3 years ago
Read 2 more answers
Which set of coefficients will balance this chemical equation?
Katarina [22]

Answer:

B 1,3

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Count the atoms on each side of the arrow, they have to be equal

After arrow

2x C

6x O

4x H

Before the arrow

2x C - correct, as it is the only compound with C then there must only be 1 mole of it.

This is also the correct amount of H

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7 0
3 years ago
Multiple-choice questions have a special grading rule determined by your instructor. Assume that your instructor has decided to
leva [86]

Answer:

The correct answer is option d.

Explanation:

On submission of an incorrect answer to a multiple-choice question with n options,  we will lose:

=\frac{ 1}{(n-1)} of credit

If we multiple-choice question has five answer choices. And we have submitted 1 wrong answer. the fraction of credit we loose :

=\frac{ 1}{(5-1)} of credit

=\frac{1}{4} of credit

=0.25 credit

The percentage of credit we loose:

=0.25\times 100 of credits

=25\% of credits

6 0
3 years ago
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