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ivanzaharov [21]
4 years ago
5

Which half-reaction correctly represents reduction? *

Chemistry
1 answer:
nasty-shy [4]4 years ago
3 0

Answer:

C

Explanation:

Reduction can be seen through addition (gaining) of electrons, addition of Hydrogen or removal of Oxygen

Mn7+ is reduced to Mn4+ by the addition of 3 electrons.

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Argon has a pressure of 34.6 atm. It is transferred to a new tank with a volume of 456 L and pressure of 2.94 atm. What was the
NemiM [27]

Answer:

38.75 L

Explanation:

From the question,

Applying Boyles Law,

PV = P'V'....................... Equation 1

Where P = Original pressure of the Argon gas, V = Original Volume of Argon gas, P' = Final pressure of Argon gas, V' =  Final Volume of Argon gas.

make V the subject of the equation

V = P'V'/P.................... Equation 2

Given: P = 34.6 atm, V' = 456 L, P' = 2.94 atm.

Substitute these values into equation 2

V = (456×2.94)/34.6

V = 38.75 L

3 0
3 years ago
Which is right pls right answers only the one thats right will get brailiest
Leviafan [203]

Answer:

Explanation:

the last one thats all i know

5 0
3 years ago
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Which has more thermal energy, a bucketful of water at 21 Celsius degrees or a swimming pool at the same temperature?
Nutka1998 [239]

Swimming pool has more thermal energy than bucket of water at the same temperature.

<h3>What is heat capacity?</h3>

Heat capacity or thermal energy is the amount of heat that is use by an object to produce a unit change in temperature or the heat absorbed by an to produce a change in temperature.

The heat capacity of an object total depends on the objects mass and chemical composition. Because of swimming pool have larger mass, it had larger heat capacity than bucket full of water even at the same temperature.

Therefore, Swimming pool has more thermal energy than bucket of water at the same temperature.

For more details on heat capacity check the link below.

brainly.com/question/21406849

6 0
3 years ago
Which of the following best explains why the atomic theory changed over the past 200 years?
Marianna [84]
The atomic theory changed because as time passed by our technolgy has been improving our ability to find answers to these theories.
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The dermis or corium is a layer of skin between the epidermis
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