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viva [34]
3 years ago
12

______ reactions release energy.

Chemistry
1 answer:
Igoryamba3 years ago
4 0
Combustion reactions release energy in the form of heat. 
        Hope this helps and tell me if you need more help!
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If 2.5L of solution is diluted to prepare 1.7L of a 0.8M solution, what was the original concentration?
mamaluj [8]

Answer:

0.544 M

Explanation:

First find the moles in the final solution

0.8 mols/L *1.7L

1.36 mols

so there is 1.36 mols in 2.5L

concentration will be 1.36/2.5

0.544 M

5 0
2 years ago
What is another word for chemical change
satela [25.4K]

oxidisation.

decomposition reaction.

displacement.

chemical decomposition reaction.

neutralisation reaction.

chain reaction.

chemical action.

reducing.

4 0
3 years ago
Can you help me figure out how to determine the Conjugate Acid of Sodium Chloride - NACL ?
mars1129 [50]

Answer:

Explanations:

4 0
1 year ago
Solid Magnesium reacts with a Iron (II) Chloride solution ->
photoshop1234 [79]

Answer:

Magnesium + iron chloride   →    iron + magnesium chloride

Explanation:

It is the single replacement reaction.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Molecular equation:

Magnesium + iron chloride   →    iron + magnesium chloride

Chemical equation:

Mg(s)  + FeCl₂(aq)       →     MgCl₂(aq) + Fe(s)

Ionic equation:

Mg(s)  + Fe²⁺(aq) + 2Cl⁻(aq)       →     Mg²⁺(aq) + 2Cl⁻(aq) + Fe(s)

Net ionic equation:

Mg(s) + Fe²⁺(aq)      →   Fe(s) + Mg²⁺(aq)

5 0
3 years ago
(WILL GIVE BRAINLESS)Throwing a paper airplane through the air is an example of A. fluid friction B. sliding friction C. rolling
Scilla [17]

Answer:

sliding friction

Explanation:

8 0
3 years ago
Read 2 more answers
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