CHEMISTRY HIGH SCHOOL

Based upon the ion charge of the following polyatomic ions, predict the formula for the following compounds. sulfate = SO4 -2 phosphate = PO4 -3 hydroxide = OH- sodium sulfateNaSo4
Na2SO4
Na(SO4)2
NaSO8

Answers

Answer 1

Answer:

Answer:

The correct answer is $Na_2SO_4$ .

Explanation:

Given polyatomic ions:

1) Sulfate = $SO_(4)^(2-)$

2) Phosphate = $PO_(4)^(-3)$

3) Hydroxide = $OH^-$

The formula of Sodium sulfate will be:

$2Na^++ SO_(4)^(2-)\rightarrow Na_2SO_4$

Sodium carries 1+ charge and and sulfate ion carries 2-charge. In order to neutralize negative charge on sulfate ion two sodium ions will be needed.

Answer 2

Answer: Since the sodium ion is Na+, and sulfate is SO4(2-), you'll need 2 sodiums for a sulfate, making sodium sulfate Na2SO4.

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2H2 + O2 ---> 2H2OHow many moles of oxygen (O2) are required to completely react with 27.4 mol of H2?

A.) 6.8 mol
B.) 13.7 mol
C.) 54.8 mol
D.) 109.6 mol

Answers

2 H2 + O2 ----------- 2 H2O

2 mol H2 ----------- 1 mol O2
27.4 mol H2- ------ x mol O2

2x = 27.4

x = 27.4 / 2

x = 13.7 moles O2

answer b

hope this helps!.

Answer:

B.) 13.7 mol

Explanation:

Edge 2020

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