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GalinKa [24]
3 years ago
6

Which ion will correctly complete the formula _________2hpo4?

Chemistry
1 answer:
N76 [4]3 years ago
4 0
The charge of the ion, HPO₄⁻² is equal to -2. This is the same as the one written before it as it appears in the formula of the substance. Since, in the given chemical formula, HPO₄ does not have any multiplier, the charge of the atom or ion that should appear before it is +1. The atoms that will have a charge of +1 are those in group A1. These are Na+, Li+, K+, Rb+, Cs+ and Fr+. 
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How many significant figures are needed in the answer when 1.31m is multiplied by 6.5 m​
dmitriy555 [2]

Answer:

two

Explanation:

The number of significant figures needed in the answer is 2.

This is because when finding the products of two numbers, the result is as accurate as the least number of significant figures of the numbers being multiplied.

Here the numbers being multiplied are;

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So, the product will have 2 significant figures

6 0
2 years ago
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5 0
3 years ago
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7 0
3 years ago
What is the temperature of 0.500 moles of a gas that is stored in a 2.50 L container under 13.0 atm of pressure?
faust18 [17]
<h2>Answer:</h2>

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3 years ago
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scZoUnD [109]

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