What do the red arrows represent

Chemistry

1 answer:

Viefleur [7K]3 years ago

6 0

Answer:

There are three forces acting on the skateboard. One of these forces is the weight of the rider. Another is the force of gravity on the board itself. The third is the force of the ground pushing up on the skateboard.

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Is hydrogen peroxide a element, compound or a mixture?

victus00 [196]

Answer:

hydrogen peroxide is a compound

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Copper(II) carbonate undergoes thermal decomposition. One of the pro

Llana [10]

Answer: The green copper (II) carbonate $(CuCO_3)$ changes to black copper oxide $(CuO)$

$CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)$

Explanation:

Decomposition is defined as the chemical reaction in which a single compound gives two or more simple substances. It requires energy to break the bonds between reactants, thus is an endothermic process.

Thermal decomposition uses heat for decomposition.

The chemical equation for thermal decomposition of copper (II) carbonate is:

$CuCO_3(s)\stackrel{\Delta }\rightarrow CaO(s)+CO_2(g)$

The green copper (II) carbonate $(CuCO_3)$ changes to black copper oxide $(CuO)$

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Which source of energy is a fossil fuel?

Ahat [919]

I'm only in middle school but i believe its coal.

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4 years ago

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