All categories

2 years ago

Which of these describes an exothermic reaction?

Chemistry

2 answers:

kati45 [8]2 years ago

5 0

Answer:

Here's your answer!!!

C. Energy is released by the reaction

Paul [167]2 years ago

3 0

A nswer: -

C. Energy is released by the reaction

Explanation:-

An exothermic reaction is one in which during the progress of the reaction heat is evolved.

So energy is released by the reaction.

It cannot be created as energy is neither created nor destroyed as per the Law of conservation of energy. Energy is not transferred either.

The energy released during the progress of the reaction originates from the chemical bonds of the reactants as they break during their conversion into products.

You might be interested in

The cell of your body need energy to carry out life function. Which of the following body responses is a sign that your cells ne

Shkiper50 [21]

B is my pick that's what I think

8 0

3 years ago

How would the addition of protons affect the concentration of CH3COOH? How would the addition of OH– affect the amount of CH3COO

Deffense [45]

Answer:

1) increase concentration

2) decrease the amount

3) decrease the concentration

4) it would increase

Explanation: edge 2021

8 0

3 years ago

Read 2 more answers

1. inspiration meaning

Furkat [3]

Answer:

inspiration means

the process of being mentally stimulated to do or feel something, especially to do something creative.

6 0

3 years ago

Read 2 more answers

A boxed 10 kg computer monitor is dragged by friction 5.5 m up along the moving surface of a conveyor belt inclined at an angle

Ede4ka [16]

Answer:

A lot, because it belt inclined at an angle of 36.9° above the horizontal.

I need points haha!

5 0

2 years ago

Read 2 more answers

if 28.5 g of calcium hydroxide is dissolved in enough water to make 185g of solution what is the percent by mass of calcium hydr

DENIUS [597]

The percent by mass of calcium hydroxide in the solution : 15.41%

<h3>Further explanation</h3>

The concentration of a substance can be expressed in several quantities such as moles, percent (%) weight/volume,), molarity, molality, parts per million (ppm) or mole fraction. The concentration shows the amount of solute in a unit of the amount of solvent.

Mass of solute (Ca(OH₂-Calcium hydroxide) : 28.5

Mass of solution = 185 g

$\tt \%mass=\dfrac{mass~solute}{mass~solution}\times 100\%\\\\\%mass=\dfrac{28.5~g}{185~g}\times 100\%\\\\\%mass=15.41\%$

6 0

3 years ago