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AnnZ [28]
3 years ago
8

What two things are conserved in a chemical reaction?

Chemistry
1 answer:
Sloan [31]3 years ago
3 0
Mass and atoms are the properties conserved in every ordinary chemical reaction.

Hope this helps!
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Given the partial equation: NO3− Pb2 → NO2 Pb4 , balance the reaction in acidic solution using the half-reaction method and fill
Fed [463]

Answer : The balanced reaction in acidic solution is,

2NO_3^-+1Pb^{2+}+4H^+\rightarrow 2NO_2+1Pb^{4+}+2H_2O

Explanation :

The given partial equation is,

NO_3^-+Pb^{2+}\rightarrow NO_2+Pb^{4+}

First we have to separate into half reaction. The two half reactions are:

NO_3^-\rightarrow NO_2

Pb^{2+}\rightarrow Pb^{4+}

Now we have to balance the half reactions in acidic medium, we get:

NO_3^-+2H^++1e^-\rightarrow NO_2+H_2O       ............(1)

Pb^{2+}\rightarrow Pb^{4+}+2e^-     ............(2)

Now we have to balance the electrons of the half reactions. When we are multiplying the equation (1) by 2, we get

2NO_3^-+4H^++2e^-\rightarrow 2NO_2+2H_2O  ...........(3)

Now we have to add both the half reactions (2) and (3), we get the final balanced chemical reaction.

2NO_3^-+1Pb^{2+}+4H^+\rightarrow 2NO_2+1Pb^{4+}+2H_2O

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3 years ago
PLEASE HELP ITS DUE SOON AND I DONT UNDERSTAND
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The answer is 137 grams boyyy
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2 years ago
What is the name of compound 10H2O
Romashka-Z-Leto [24]

Answer:

sodium carbonate decahydrate

Explanation:

Usually we would the molar mass of Na2CO3 x 10 H2O. This is where the name comes from.

3 0
3 years ago
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