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ahrayia [7]
1 year ago
15

What does the following energy diagram represent?A. Activation energyB. Exothermic reactionC. Specific heat capacityD. Endotherm

ic reaction

Chemistry
1 answer:
inn [45]1 year ago
8 0

Explanation:

We are given the following diagram.

In this diagram we can see how the energy in the reaction changes over time. The energy of the products is greater than the energy of the reactants. That means that the products have won some energy. That represents an endothermic reaction where the reactants absorb energy from the surrounding to form the products.

Answer: D. Endothermic reaction.

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Explanation:

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Gold is malleable, so it can be flattened into extremely thin sheets.

on the other hand Gold consist of copper

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8 0
2 years ago
How many moles of calcium oxide are formed when 3 moles of calcium react with oxygen?
Temka [501]

Answer:

3 moles of CaO

Explanation:

The chemical balanced equation is;

2Ca + O₂ → 2CaO

The ratio of calcium(Ca) to Calcium Oxide(Cao) in this equation is 2:2.

Now, when 3 moles of calcium react with oxygen, Cao produced will be;

3 moles of O₂ × 2 moles of CaO/2 moles of Cao = 3 moles of CaO

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3 years ago
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Refer to to this chart 

Credits to <span>https://image.slidesharecdn.com/nybf09-unit2slides26-57-100125181507-phpapp01/95/nyb-f09-unit-2-slid...

As temperature decreases, rate decreases. 

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I have posted the answetr in this picture.

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