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vodka [1.7K]
3 years ago
15

Which action can speed up the rate of a chemical reaction?

Chemistry
2 answers:
Ainat [17]3 years ago
7 0

Answer:

la reaction. la temperature es parte de una reacion.

Serhud [2]3 years ago
3 0

Answer:

Increasing the concentration of reactants

Explanation:

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At STP how many molecules of nitrogen gas are in 224 L?
NeTakaya

Answer:

6.022×10²² molecules

Explanation:

Given data:

Volume of nitrogen = 224 L

Pressure = standard = 1 atm

Temperature = standard = 273 K

Number of molecules = ?

Solution:

PV = nRT

1 atm × 224 L = n × 0.0821 atm.L/mol.K × 273 K

224 atm.L = n ×22.41 atm.L/mol

n = 224 atm.L/22.41 atm.L/mol

n = 10 mol

1 mole contain 6.022×10²³ molecules

10 mol×6.022×10²³ molecules/ 1 mol

60.22×10²³ molecules

6.022×10²² molecules

6 0
2 years ago
Which statement describes the flow of electricity if a small motor is connected to the gap in the wire and the circuit is closed
Tresset [83]

what are the statements that you are able to choose from or do you just have to know?


8 0
3 years ago
What occupations may light and sound be involved in and what branch of science is their study?​
Maslowich

Explanation:

Physics: The study of matter and energy and the interactions between them. Physicists study such subjects as gravity, light, and time.

The question is a bit confusing but here i go..

6 0
3 years ago
What can you conclude about red visible light waves compared to blue visible light waves?
lawyer [7]

Explanation:

On comparing blue visible light with red visible light, there is difference in the wavelength, frequency, and energy. The difference between both red and blue visible lights are as follows.

Blue visible light:

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Red visible light:

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7 0
3 years ago
Read 2 more answers
What sample is a pure substance?A. a test tube of zinc oxide.
Mice21 [21]
The correct answer is A. A test tube of zinc oxide. Zinc oxide is a compound which is a pure substance composed of two or more elements. They can only be separated or broken down into its individual elements or smaller compounds by chemical means. Therefore, the answer is a test tube of zinc oxide.
7 0
3 years ago
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