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borishaifa [10]
3 years ago
10

What are the coefficients that would balance the chemical equation below?

Chemistry
1 answer:
Ludmilka [50]3 years ago
7 0

The coefficients :  3, 2, 1,3

<h3>Further explanation</h3>

Given

Reaction

Mg + H3PO4 -> Mg3(PO4)2 + H2

Required

The coefficients

Solution

Steps to balance reactions:

1. Give a coefficient(The most complex compound is assigned a coefficient of 1)

aMg + bH₃PO₄ ⇒ Mg₃(PO₄)₂ + cH₂

2. Make an equation

Mg, left = a, right = 3 ⇒a=3

P, left = b, right = 2⇒b=2

H, left = 3b, right = 2c⇒3b=2c⇒3.2=2c⇒2c=6⇒c=3

The equation becomes :

<em>3Mg + 2H₃PO₄ ⇒ Mg₃(PO₄)₂ + 3H₂</em>

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Answer: 292.54g of Ag

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#1: The element that loses electrons in a chemical reaction is said to have been which of the following?
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#1: The element that loses electrons in a chemical reaction is said to have been which of the following? A. reduced

B. oxidized

C. combusted

D. rusted

**idk, is it reduced or oxidized??

Answer: oxidized. The element that loses electrons increases its oxidation number (becomes more positve or less negative) and this is oxidation.


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**my answer: C

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A. +5

B. +3

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D. - 1

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is that right??

Right

2(+1) + 1 + x + 3(-2) = 0 => x = 6 -1 -2 = 3 (positive)
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