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Tems11 [23]
3 years ago
12

What is electrochemistry?

Chemistry
2 answers:
lara31 [8.8K]3 years ago
5 0

Answer:

The study of electricity in chemistry.

gregori [183]3 years ago
5 0
The study of electricity and chemistry
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A gas mixture with a total pressure of 745 mmHg contains each of the following gases at the indicated partial pressures: CO2, 12
Serhud [2]

Answer:

P_{He}=219mmHg

m_{He}=0.618gHe

Explanation:

Hello,

By applying the Dalton's law, we can compute the partial pressure of the helium has:

P_{tot}=P_{CO_2}+P_{Ar}+P_{O_2}+P_{He}

Now, solving for the partial pressure of the helium gas we get:

P_{He}=P_{tot}-P_{CO_2}-P_{Ar}-P_{O_2}=745mmHg-125mmHg-214mmHg-187mmHg\\P_{He}=219mmHg=0.288atm

On the other hand, the mass of the helium gas is computed via the ideal gas equation in terms of the helium's mass:

PV=\frac{m_{He}}{M_{He}}RT\\m_{He}=\frac{M_{He}PV}{RT} =\frac{4g/mol*0.288atm*12L}{0.082\frac{atm*L}{mol*K}*273K}\\ m_{He}=0.618gHe

Best regards.

7 0
3 years ago
What might be useful for adding solids to a tube
vagabundo [1.1K]
C funnel because the funnel would have a large enough entrance to put a solid through
7 0
4 years ago
What is the definition of an Arrhenius acid?
Lorico [155]

Answer:

I <u>think</u> your answer is: C. ("An Arrhenius acid increases [H +] in the solution.")

Explanation:

An Arrhenius acid is a substance that dissociates in water to form hydrogen ions (H + ); that is, an acid increases the concentration of H + ions in an aqueous solution. This causes the protonation of water, or the creation of the hydronium (H 3 O +) ion.

Hopefully this helps!

Have a great day! ^^

5 0
3 years ago
Which of the following represents a synthesis reaction?
bija089 [108]

Answer: a) 2H2 + O2 --> 2H2O

Explanation: 2 compounds are combining to form a new compound. The others have 2 substances as the end result and synthesis only produces one result (2H2O in this case)

6 0
3 years ago
What are three functions needed for a plant to survive
Novosadov [1.4K]
Water, Sun/Heat, and Carbon Dioxicide/Air

Sorry About Spelling!
8 0
3 years ago
Read 2 more answers
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