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alex41 [277]
3 years ago
12

The meaning of atoms

Chemistry
2 answers:
nikdorinn [45]3 years ago
5 0

Answer:

Basic unit of a chemical element

Explanation:

REY [17]3 years ago
4 0

Answer:

They make up all matter.

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How any moles of H2O will be produced from 12.3 moles of HCL reacting with Ca(OH)2?
stiks02 [169]

Answer:

\large \boxed{\text{12.3 mol HCl}}  

Explanation:

We need a balanced chemical equation with moles.

            2HCl +Ca(OH)₂ ⟶ CaCl₂ + 2H₂O

n/mol:    12.3

The molar ratio is 2 mol H₂O:2 mol HCl.

\text{Moles of H$_{2}$O} = \text{12.3 mol HCl} \times \dfrac{\text{2 mol H$_{2}$O}}{\text{2 mol HCl}} = \textbf{12.3 mol HCl}\\\\\text{The reaction produces $\large \boxed{\textbf{12.3 mol HCl}}$}

3 0
3 years ago
Use water as an example to contrast the properties of a compound with the elements from which it is composed
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11. Which of the following statements describe anions? Select all that apply.
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The answer is: c. electrons
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What reaction type is depicted by the following equation? 2C2H2 + 5O2 4CO2 + 2H2O decomposition combination combustion single-re
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