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3 years ago

What can form as a result of a chemical reaction?

Chemistry

2 answers:

CaHeK987 [17]3 years ago

8 0

The formation of new substances

cestrela7 [59]3 years ago

4 0

Answer is: new substance.

For example, synthesis chemical reaction: Ba + F₂ → BaF₂.

Synthesis reaction is a type of reaction in which multiple reactants combine to form a single product.

New substance, barium fluoride is formed, with different chemical and ohysical properties than reactants (barium and fluorine).

In barium fluoride, barium has oxidation number +2 and fluorine has oxidation number -1, so compound has neutral charge.

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Salsk061 [2.6K]

Answer:

Less than one gram

Explanation:

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1 year ago

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3 years ago

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2 years ago

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3 years ago

How many moles are in 7.00E24 atoms of Ca?

iris [78.8K]

Explanation:

In chemistry, a mole is the base unit of the amount of substance in a system containing elementary entities (atoms, molecules, ions, electrons), and one mole of substance corresponds to the Avogadro's constant or $6.023 \ \times \ 10^{23}$ entities. The stoichiometry equation that relates the amount of substance into the measurement in moles is

$n \ = \ \displaystyle\frac{\alpha}{N_{A}}$ ,

where $n$ is the number of moles, $\alpha$ is the amount of substance and $N_{A}$ is the Avogadro's constant.

Therefore,

$n \ = \ \displaystyle\frac{7.00 \ \times \ 10^{24} \ \text{atoms}}{6.023 \ \times \ 10^{23} \ \text{atoms mol}^{-1}} \\ \\ n \ = \ 11.624 \ \text{mol}$ .

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2 years ago