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Agata [3.3K]
3 years ago
11

The smallest part of a molecule is called

Chemistry
2 answers:
yarga [219]3 years ago
8 0

Answer:

D atom

Explanation:

The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms

lapo4ka [179]3 years ago
6 0

Answer:

an insulator is right answer

Explanation:

i hope it is helpful for you

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Anyone know this question?
Natalka [10]

Answer:

6 is the correct answer

Explanation:

4 0
3 years ago
Doreen Schmidt is a chemist. She needs to prepare 28 ounces of a 12​% hydrochloric acid solution. Find the amount of 14​% soluti
Tpy6a [65]

Answer:

20 ounces of 14% solution and 8 ounces of 7% solution.

Explanation:

Let the amount of 14% solution required be A and the amount of 7% solution required be B.

Mixture of A and B must give 28 ounces:

A + B = 28 ................. Eqn 1

Also, mixture of 14% A and 7% B must give 12%, 28 ounces solution:

0.14A + 0.07B = 0.12(28) = 3.36...................Eqn 2

From eqn 1, B = 28 - A, eqn 2 becomes:

0.14A + 0.07(28 - A) = 3.36

0.07A = 3.36 - 1.96

A = 20 ounces

Substitute the value of A into eqn 1 to get B:

20 + B = 28

B = 8 ounces.

Hence, 20 ounces of 14% hydrochloric acid and 8 ounces of 7% hydrochoric acid should be mixed together in order to get 28 ounces of 12% solution.

8 0
3 years ago
How do cm3 compare to mililiters
azamat
Cm^3=1cm*1cm*1cm
=10mm*10mm*10mm
=1000 mm^3
4 0
3 years ago
4. Assuming the reaction below is at equilibrium, which of the following changes will drive the reaction to the left? C(s) + O2(
shepuryov [24]

Answer:

Increasing temperature

Explanation:

C(s) + O_2(g) \leftrightharpoons CO_2(g)

Enthalpy of the reaction = -393.5 kJ/mol

Negative sign implies that reaction is exothermic.

Effect of change in reaction condition is explained by Le chateliers principle.

According to Le chateliers principle, if the reaction conditions of a reversible reaction in a state of dynamic equilibirum is changed, the reaction will move in a direction to counteract the change.

1. Increasing the temperature

Forward reaction is exothermic that means temperature increases in forward direction. Backward reaction will be endothermic and so there is decrease in temperature in backward direction or in left direction.

On increasing temperature, reaction will be move in direction to counteract the increased temperature, therefore reaction will move in left direction.

2. Adding O2

If O2 is added, then reaction will move in a direction in which its get consumed. So, reaction will move in forward direction or in right direction.

3. Removing C (s)

Le Chatelier's principle does not apply on solids, so removal of C(s) does not affect the equilibrium.

4 0
4 years ago
Read 2 more answers
Plz help me with this problem what is the boiling point (in celsius) of a 1.56m aqueous solution of CaCl2?
jok3333 [9.3K]

The answer is 102.39* C


Hope this helps



4 0
4 years ago
Read 2 more answers
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