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earnstyle [38]
3 years ago
12

Indicate the number corresponding to each coefficient required to write the balanced equation for the reaction:

Chemistry
2 answers:
dimaraw [331]3 years ago
5 0
The number  of corresponding to each coefficient  required to write the balanced  equation for the  reaction is as below


2 HNO3  + Mg(OH)2  =  2H2O  + Mg(NO3)2
the  coefficient  is therefore
a=2
b=1
c=2
d=1

2 moles of HNO3  reacted  with 1  mole of Mg(OH)2   to form 2 moles of H2O  and 1 mole of Mg(NO3)2
Alla [95]3 years ago
4 0

Answer:

a 2

b 1

c 2

d 1

Explanation:

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Explanation:

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At 35.0°c and 3.00 atm pressure, a gas has a volume of 1.40 l. what pressure does the gas have at 0.00°c and a volume of 0.950 l
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Answer : The pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

Solution :

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}

where,

P_1 = initial pressure of gas = 3 atm

P_2 = final pressure of gas = ?

V_1 = initial volume of gas = 1.40 L

V_2 = final volume of gas = 0.950 L

T_1 = initial temperature of gas = 35^oC=273+35=308K

T_2 = final temperature of gas = 0^oC=273+0=273K

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\frac{3atm\times 1.40L}{308K}=\frac{P_2\times 0.950L}{273K}

P_2=3.918atm

Therefore, the pressure of gas will be, 3.918 atm and the combined gas law is used for this problem.

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3 years ago
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