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3 years ago

What is the balanced equation and type of reaction for: Copper metal+aqueous silver nitrate

Chemistry

1 answer:

Gnesinka [82]3 years ago

3 0

Answer:

Cu(s) + 2AgNO3(aq)→Cu(NO3)2(aq)+2Ag(s)

This chemical equation means:

One mole of solid copper plus two moles of aqueous silver nitrate produce one mole of copper(II) nitrate plus two moles of solid silver.

This is a single replacement reaction in which the metal copper replaces the metal silver.

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A 3.0-mol sample of kclo3 was decomposed according to the equation 2kclo3(s) --> 2kcl(s) + 3o2(g) how many moles of o2 are fo

d1i1m1o1n [39]

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3 years ago

In a constant‑pressure calorimeter, 70.0 mL of 0.350 M Ba(OH)2 was added to 70.0 mL of 0.700 M HCl. The reaction caused the temp

DanielleElmas [232]

<u>Answer:</u> The amount of heat absorbed by the solution is 2.795 kJ

<u>Explanation:</u>

To calculate the mass of water, we use the equation:

$\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}$

Density of water = 1 g/mL

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Putting values in above equation, we get:

$1g/mL=\frac{\text{Mass of water}}{140mL}\\\\\text{Mass of water}=(1g/mL\times 140mL)=140g$

To calculate the heat absorbed, we use the equation:

$q=mc\Delta T$

where,

q = heat absorbed

m = mass of water = 140 g

c = heat capacity of water = 4.186 J/g°C

$\Delta T$ = change in temperature = $T_2-T_1=(28.74-23.97)^oC=4.77^oC$

Putting values in above equation, we get:

$q=140g\times 4.186J/g^oC\times 4.77^oC=2795.4J=2.795kJ$

Hence, the amount of heat absorbed by the solution is 2.795 kJ

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3 years ago

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Stels [109]

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