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Sveta_85 [38]
3 years ago
15

The heaviest commonly used United States coin is the half dollar, which has a mass of 11.340g. The lightest United States coin i

s the dime, which has a mass of 2.268 g. Report the sum of these masses in scientific notation
Chemistry
1 answer:
Kruka [31]3 years ago
7 0

Answer:

13.6×10^3

Explanation:

11.340+2.268= 13.608

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A net ionic equation is a chemical equation that list only the species that are involved in the reaction.

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In an ionic equation, salts are written as ions, that means CuSO₄ must be written as Cu²⁺ + SO₄²⁻. That is:

2NH₃ + 2H₂O  + Cu²⁺ +<u> SO₄²⁻</u> → Cu(OH)₂(s) + 2NH₄⁺ + <u>SO₄²⁻</u>

As in a net ionic equation you must list only the species involved in the reaction (The underlined species don't react), the net ionic equation is:

<em>c</em>. <em>2NH₃ + 2H₂O  + Cu²⁺ → Cu(OH)₂(s) + 2NH₄⁺</em>

<em></em>

I hope it helps!

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