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slava [35]
3 years ago
6

describe the placement of the crucible lid on the crucible when heating the magnesium. Why is it important that this be done cor

rectly?
Chemistry
1 answer:
Andreas93 [3]3 years ago
7 0
What
:(((((((((((((((((((((
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Name the two products when calcium carbonate (CaCO3) is heated
trapecia [35]

Answer:

The products are Calcium oxide and Carbon dioxide.

Explanation:

When calcium carbonate is heated, thermal decomposition occurs.

Calcium calcium → Calcium oxide + Carbon dioxide

3 0
3 years ago
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Measure of the average kinetic energy of molecules in an in an object
algol13
Yes because molecules is solid
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Кее<br> 2. How have observations of the natural world helped<br> in the development of calendars?
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How might the hydrosphere affect the biosphere?
iragen [17]

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2 years ago
how much energy would it take to heat a section of the copper tubing that weights about 660.0 gram, from 12.93 degree Celsius to
expeople1 [14]

Answer:

                      Q  =  2647 J

Explanation:

                    Specific heat capacity is the amount of energy required by one Kg of a substance to raise its temperature by 1 °C.

In thermodynamics the equation used is as follow,

                                                 Q  =  m Cp ΔT

Where;

           Q  =  Heat  =  ?

           m  =  mass  =  660 g

           Cp  =  Specific Heat Capacity  =  0.3850 J.g⁻¹.°C⁻¹

           ΔT  =  Change in Temperature  =  23.35 °C - 12.93 °C  =  10.42 °C

Putting values in eq. 1,

                            Q  =  660 g × 0.3850 J.g⁻¹.°C⁻¹ ×  10.42 °C

                            Q  =  2647 J

8 0
3 years ago
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