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Liula [17]
3 years ago
13

How could you separate a mixture of rocks and sand

Chemistry
1 answer:
Assoli18 [71]3 years ago
7 0
Sedimentation and decantation




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Calculate the energy required to produce 6.0 moles of Cl2O7 using the following reaction 2 Cl2 + 7 O2 + 130kcal -> 2 Cl207
PilotLPTM [1.2K]

Answer:

455 Kcal

Explanation:

2Cl2(g) + 7O2(g) + 130kcal → 2Cl2O7(g)

Rearranging we get,

2Cl2(g) + 7O2(g)  → 2Cl2O7(g) Δ H = 130 kcal . mol⁻¹

So for per mol reaction will be as above.

In case of 7 mols of product, we need 7/2 mole ratio x 130 = 455 Kcal

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Predict whether carbon dioxide or water would have a higher boiling point. Explain your prediction in terms of the attractions b
yulyashka [42]

Answer:

since ionic bonds, bonds that are charged, have very high boiling points, then the water would have a higher boiling point because it has a slight charge whereas carbon dioxide is stable.

Explanation:

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Which of these materials requires the most heat to raise its temperature by one degree
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Water ______________________________________________

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3 years ago
Photosynthesis takes carbon dioxide, water, and sunshine and turns them into____?
RUDIKE [14]
Photosynthesis  takes  carbon dioxide, water and  sunshine  and  turn  them into   glucose  and oxygen

      Explanation
Glucose  is the principal  carbohydrate formed  through  photosynthesis,  Through the process  of  photosynthesis  sunshine, carbon  dioxide  and   water  to  form glucose  and   oxygen

 
Equation for   reaction  is  as follows

CO2+ H2O +  light  energy 
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C6H12O6   is  the  glucose

 
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