Answered

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For the equation [tex]\(3Cu + 8HNO_3 \rightarrow 3Cu(NO_3)_2 + 2NO + 4H_2O\)[/tex], how many units of [tex]\(NO_3\)[/tex] are represented on the products side?

A. 2
B. 3
C. 6
D. 8

Sagot :

GinnyAnswer
To determine the number of [tex]\( NO_3 \)[/tex] units represented on the products side of the chemical equation:

[tex]\[ 3 Cu + 8 HNO_3 \rightarrow 3 Cu(NO_3)_2 + 2 NO + 4 H_2O \][/tex]

follow these steps:

1. Identify the compound containing [tex]\( NO_3 \)[/tex] on the products side. In this equation, it is [tex]\( 3 Cu(NO_3)_2 \)[/tex].

2. Understand the composition of [tex]\( Cu(NO_3)_2 \)[/tex]:
- Each [tex]\( Cu(NO_3)_2 \)[/tex] molecule contains 2 [tex]\( NO_3 \)[/tex] units.

3. Calculate the total number of [tex]\( NO_3 \)[/tex] units:
- There are 3 molecules of [tex]\( Cu(NO_3)_2 \)[/tex].
- Since each [tex]\( Cu(NO_3)_2 \)[/tex] molecule contains 2 [tex]\( NO_3 \)[/tex] units, to find the total number of [tex]\( NO_3 \)[/tex] units, multiply the number of molecules by the number of [tex]\( NO_3 \)[/tex] units per molecule: [tex]\( 3 \times 2 = 6 \)[/tex].

Therefore, the chemical equation [tex]\( 3 Cu + 8 HNO_3 \rightarrow 3 Cu(NO_3)_2 + 2 NO + 4 H_2O \)[/tex] has a total of 6 units of [tex]\( NO_3 \)[/tex] on the products side.

So, the correct answer is:
6.
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