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Luda [366]
3 years ago
7

Write an importance of endothermic reactions​

Chemistry
1 answer:
KengaRu [80]3 years ago
8 0

Answer:

the uses of exothermic reactions are:

1) lighting of stove

2) self heating cans

3) hand warmers

4) in some case exothermic process can be used to cook food such as rice  (by adding calcium oxide to water heat is evolved and it helps to cook food )

Explanation:

hope this helps you pls mark me as brainilst

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If not as an element, atoms show up as _______________ and _______________
enot [183]

Answer:

greater or less

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atom/ mass

8 0
4 years ago
"Write the balanced chemical equation for the neutralization reaction that occurs when an aqueous solution of hydrochloric acid
timurjin [86]

Answer:

KOH(aq) + HCl(aq) ——-> KCl(aq) + H2O(l)

Explanation:

A neutralization reaction is the chemical reaction between an acid and an alkali to yield salt and water only.

In this particular question, the acid is hydrochloric acid while the alkali is potassium solution. We now write the equation of reaction as follows:

KOH(aq) + HCl(aq) ——-> KCl(aq) + H2O(l)

The salt formed here is KCl otherwise called potassium chloride

3 0
3 years ago
How is the Bohr atomic model different from the plum-pudding model?
katovenus [111]

Answer:

A. In Bohr's model, the atom's mass is found at its center instead of distributed throughout.

Explanation:

The Plum-Pudding model of an atom was  proposed by the late J.J Thompson. In this model, an atom is seen as negative charged particles that are surrounded by a soup of positive charge, which was liken to Plum Pudding, an English dessert.

While in Bohr's model of an atom; negatively charged electrons move in clearly defined circular orbits around the atom's mass (positively charged), called Nucleus.

8 0
4 years ago
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Which of the following is an acid?<br><br> HF <br> KOH <br> LIF <br> NH3
Svetllana [295]
HF (Hydrogen fluoride) is a weak acid
KOH (Potassium hydroxide) is a strong base
LIF (Lithium Fluoride) is neutral
NH3 (Ammonia) is a weak base
So the answer is HF
6 0
3 years ago
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What are the<br> main sources of renewable<br> energy?
Helga [31]

Answer:

The answer is solar energy

Explanation:

8 0
4 years ago
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