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Advocard [28]
2 years ago
12

A student heated some copper(II) carbonate using this apparatus:

Chemistry
1 answer:
lubasha [3.4K]2 years ago
5 0

Answer:

Below.

Explanation:

a) When limewater is heated it gives off carbon dioxide gas and leaves calcium oxide( CaO).

CaCO3 ----> CaO + CO2

b) When copper II carbonate is heated the equation is:

CuCO3 --->  CuO + CO2.

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You have a ballon filled with hydrogen gas which keeps it at a constant pressure, regardless the volume. The initial volume of t
abruzzese [7]

Answer:

619°C

Explanation:

Given data:

Initial volume of gas = 736 mL

Initial temperature = 15.0°C

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Solution:

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Initial temperature = 15.0°C (15+273 = 288 K)

The given problem will be solve through the Charles Law.

According to this law, The volume of given amount of a gas is directly proportional to its temperature at constant number of moles and pressure.

Mathematical expression:

V₁/T₁ = V₂/T₂

V₁ = Initial volume

T₁ = Initial temperature

V₂ = Final volume  

T₂ = Final temperature

Now we will put the values in formula.

V₁/T₁ = V₂/T₂

T₂ = T₁V₂/V₁  

T₂ = 2.28 L × 288 K / 0.736 L

T₂ = 656.6 L.K / 0.736 L

T₂ = 892.2 K

K to °C:

892.2 - 273.15 = 619°C

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Igneous rock can be changed into which type of rock through the application of heat and pressure
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Answer:

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Explanation:

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3 years ago
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