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Anuta_ua [19.1K]
3 years ago
12

Copper sulfate is made of one copper (Cu) atom, one sulfur (S) atom, and four oxygen (O) atoms. Write the chemical formula corre

ctly.
Chemistry
1 answer:
Rzqust [24]3 years ago
4 0
The chemical formula for copper sulfate is CuSO4
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Calculate the kilojoules needed to heat 231 g of gold from 18 ∘C to 195 ∘C.
LuckyWell [14K]

5.27 kJ of heat are required to heat 231 g of gold from 18 °C to 195 °C.

We have 231 g of gold at 18 °C and supply it with heat to increase its temperature to 195 °C. We can calculate the amount of heat required using the following expression.

Q = c \times m \times \Delta T

where,

  • Q: heat
  • <em>c: specific heat capacity of gold</em> (0.129 J/g.°C)
  • m: mass
  • ΔT: change in the temperature

Q = \frac{0.129 J}{g.\° C}  \times 231 g \times (195 \° C - 18 \° C) = 5.27 \times 10^{3} J = 5.27 kJ

5.27 kJ of heat are required to heat 231 g of gold from 18 °C to 195 °C.

You can learn more about heating here: brainly.com/question/1105305

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2 years ago
Anyone who could help me would be great!!! Plss!!!
garri49 [273]

Answer:

I think its a.The hockey puck loses heat molecule's.

7 0
3 years ago
What is chemical potential energy?
tigry1 [53]

Chemical potential energy: chemical potential of a species is energy that can be absorbed or released due to a change of the particle number of the given species, in a chemical reaction or phase transition

Gasoline used as kinetic energy: the various chemicals that make up gasoline contain a large amount of chemical potential energy that is released when the gasoline is burned in a controlled way in the engine of the car. The release of that energy does two things. Some of the potential energy is transformed into work, which is used to move the car

Dynamite used as kinetic energy: the dynamite being used was most likely made of nitroglycerin. Once the dynamite explodes from a percussion force (then breaking of weak bonds to releasing the raw atom) the energy is then converted to thermal, kinetic, and sound energy.

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3 years ago
Given the following reaction:
fredd [130]

Answer:D. In order to restore equilibrium, the reaction shifts right, towards products

Explanation:

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2 years ago
(PLZ ANSWER SOON)
almond37 [142]

Answer:

10.5 k.J.

Explanation:

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2 years ago
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