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const2013 [10]
4 years ago
15

How big is the world?

Chemistry
2 answers:
lina2011 [118]4 years ago
6 0

3,959 miles in radius

dimulka [17.4K]4 years ago
6 0

pretty big like 3,959 miles in radius and the land area is like 57.51 million mi² the surface area is 196.9 million mi² and the distance from the sun is 92.96 million mi.

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Select the correct answer. You are a sales representative for a company that makes a new alternate fuel for vehicles. You have p
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The answer would be how much greenhouse gas does your fuel produce compared with the current fuel sources.

hope this helps

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3 years ago
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Suppose the reaction system below has already reached equilibrium. Predict the effect that each of the following changes will ha
WARRIOR [948]

Explanation:

Any change in the equilibrium is studied on the basis of Le-Chatelier's principle.

This principle states that if there is any change in the variables of the reaction, the equilibrium will shift in the direction to minimize the effect.

  • On removal of reactant from equilibrium reaction ,shifts the equilibrium in backward direction.
  • On addition of reactant from equilibrium reaction ,shifts the equilibrium in forward direction.
  • On removal of product from equilibrium reaction, shifts the equilibrium in forward direction.
  • On addition of product from equilibrium reaction, shifts the equilibrium in backward direction.

UO_2(s) + 4 HF(g)\rightleftharpoons UF_4(g) + 2 H_2O(g)

1. Water vapor is removed

On removal of water vapor from equilibrium will decrease the product which will lead to moving forward of an equilibrium that is equilibrium will shift to right direction.

2. UF_4(g) is added

On addition of UF_4(g) from equilibrium will increase the reactant which will lead to moving forward of an equilibrium that is equilibrium will shift to right direction.

3.The reaction is done in a glass reaction vessel. HF(g) attacks and reacts with the glass

Due to reaction of HF with glass will result in decrease in amount of HF present at equilibrium. So, order to counter this equilibrium will shift in backward direction or in left direction.

4. If the reaction is endothermic, and you want to make the equilibrium shift to the right to maximize the products, would you heat or cool the reaction vessel.

I endothermic reaction , heat is added to the reaction for which we can treat heat as a reactant.Now, we want to shift the equilibrium to right which means in the forward direction.

And this can be done by increasing the reactant amount, here by adding more heat to the equilibrium will shift the reaction to the right side.

So, for increasing heat we will heat the reaction vessel.

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3 years ago
What is the concentration of a solution made by diluting 25ml of 6.0M HCI to a final volume of 750
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Answer:

Explanation:

The

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What is the molar mass of C4H2?
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Answer:

(12×4)+(1×2)=50

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mass of Carbon is 12....mass of hydrogen is 1

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3 years ago
We say that salts will dissociate but acids will react with water. We say that acids will
Paha777 [63]

Answer:

ionize

Explanation:

Acids are chemical substances that lose/donate their hydrogen ion (H+) when they react with water. This property of acids is termed IONIZATION. In a chemical reaction involving acids and bases, acids release their proton or hydrogen ion (H+) in the presence of water solutions to form a conjugate base, which is usually an anion.

For example, in the chemical reaction;

HX + H20 -------> X- + H30+

HX is the acid because it loses its electron to water and forms the anion, X-, which is the conjugate base. Hence, it can be said that acid HX ionizes in water.

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