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Brilliant_brown [7]
3 years ago
8

When an atom in a reactant gains electrons, what happens to its oxidation number?

Chemistry
1 answer:
skelet666 [1.2K]3 years ago
6 0

Answer:

Its oxidation number decreases.

Explanation:

Reduction is gaining electrons

Fe +3 + e = Fe+2

oxidation number went from 3 to 2

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Identify the compound that would have the highest osmotic pressure when dissolved in water. nacl k2so4 mgcl2 fecl3 mgso4
brilliants [131]

The compound that would have the highest osmotic pressure when dissolved in water is FeCl_{3} .

So,  option D is correct one.

The dissociation of one molecule of  FeCl_{3} gives the maximum number of ions when dissolved in water ( 4 ions ) . Osmotic pressure is a colligative property and depends upon number of solute particles present in the solution . The solution having maximum number of solute particles will have maximum number of the osmotic pressure .

All other given molecules gives less number of number of ions when dissolved in water as compare to of  FeCl_{3} .

To learn more about osmotic pressure

brainly.com/question/10046758

#SPJ4

5 0
2 years ago
A reaction that proceeds more slowly than
iVinArrow [24]
Answer: Less energy.
6 0
3 years ago
A man pours some hot coffee into a small cup from a large jug that contains enough coffee for several cups. Which statement corr
Stells [14]

Answer:

The correct answer is "The coffee in the jug has more thermal energy than the coffee in the cup".

Explanation:

First I had to look for the problem to know the possible answers.

In this case, the coffee jug has a large amount of coffee at the same temperature. If we analyze that the decanter and the coffee are at the same temperature, we have a homogeneous thermal system. The cup is at room temperature, so by pouring coffee into it, the temperature of the coffee decreases to balance with the temperature of the cup. At this moment, the temperature of the cup-cafe system is lower than the jug-cafe system.

Thermal energy is the part of the internal energy of an equilibrated thermodynamic system that is proportional to its absolute temperature and increases or decreases by energy transfer.

In this way, we can ensure that the thermal energy of the cup-cafe system is lower than that of the jug-cafe system.

Have a nice day!

3 0
3 years ago
Which of the following descriptions accurately describes Boyle’s law?
photoshop1234 [79]

The pressure of gas in your lungs is inversely proportionate to the volume in your lungs.

7 0
3 years ago
If you observe the a full moon on January 12th on what date would you observe the next new moon
crimeas [40]

Answer:

February 12th, the reason being, studies have shown a full moon happens about every 29.5 days, so round it up to 30, which would be a month later than January 12th! A month later from January 12th would be February 12th!

Explanation:

Hope this helps God bless!

5 0
2 years ago
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