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maksim [4K]
3 years ago
9

What is the term for a substance capable of dissolving another substance?

Chemistry
1 answer:
AURORKA [14]3 years ago
3 0

Answer:

The answer to your question is: solvent

Explanation:

Solvent is a component in a solution that is present in the highest amount and is able to dissolve the other or others components.

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What is the significance of "Er" in the diagram?
Drupady [299]

Answer:

The significance of "Er" in the diagram is :

B.) Threshold energy for reaction

Explanation:

Threshold energy : It is total amount of energy required by the reactant molecule to reach the transition state .

Activation energy : It is the excess energy absorbed by the molecules to reach the transition state.

<u>Activation Energy = Threshold Energy - Average Kinetic Energy</u>

<u>This means Activation energy decreases on increasing kinetic energy</u>

On increasing Temperature average kinetic energy of the molecule increases which reduces the activation energy and the reaction occur faster in that case.

Catalyst also reduces the Activation energy.

<u>Er = Threshshold energy for reaction at 30 degree</u>

<u>Ea = Activation Energy</u>

<u>The given figure shows that the threshold energy decreases on increasing the temperature</u>

<u>Only the molecule having energy greater than Er can react to form product</u>

3 0
3 years ago
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How many moles of phosphoric acid would be needed to produce 15 grams of water?
bekas [8.4K]

Moles of phosphoric acid would be needed : 0.833

<h3>Further explanation</h3>

Given

15 grams of water

Required

moles of phosphoric acid

Solution

Reaction(decomposition) :

H3PO4 -> H2O + HPO3

mol water (H2O :

= mass : MW

= 15 g : 18 g/mol

= 0.833

From the equation, mol ratio H3PO4 = mol H2O = 1 : 1, so mol H3PO4 = 0.833

7 0
3 years ago
A man walked 1560 meters in 16000 seconds what is the speed at which he walked
Maslowich
In what meters? miles an hour? i can’t answer unless i know that
5 0
2 years ago
On a potential energy diagram for the following processes, which of the following has an increase in entropy?
daser333 [38]
Hello,

I believe that your answer would be <span>B. water freezes
</span>Hope this helps
7 0
3 years ago
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The Lewis dot notation for two atoms is shown.
NemiM [27]
2) mg donates two protons to O.
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3 years ago
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