What occurs when Cr^3+ ions are reduced to Cr^2+ ions?

1 answer:

7 0

D:

When electrons are gained, the charge of the atom decreases.

When you are given an atom with a charge, the oxidation of that atom is the charge. So by going from a Cr^3+ (Oxidation Number = 3) to a Cr^2+ (Oxidation Number = 2), the Oxidation Number thus decreases.

You might be interested in

An indicator of average kinetic energy is

Paha777 [63]

Answer:

PRESSURE is right answer .

Explanation:

4 0

3 years ago

Plz help quick

vovangra [49]

Answer:

Explanation:

If oxygen reacts with iron, then both must be reactants and rust the product of that reaction

4 0

3 years ago

Read 2 more answers

The process of nuclear division that produces haploid sex cells is mitosis. Please select the best answer from the choices provi

Ivanshal [37]

Answer:

Explanation:

meiosis

Haploid sperm and eggs are produced via meiosis.

4 0

2 years ago

Circle which of the following depend on the amount of matter present:

yan [13]

It is the boilimg point now aa

4 0

3 years ago

Select the true statements about hydrocarbons.

daser333 [38]

Answer:

a. Hydrocarbons have low boiling points compared to compounds of similar molar mass.

b. Hydrocarbons are hydrophobic.

d. Hydrocarbons are insoluble in water.

Explanation:

As we know that the hydrocarbons is a mix of carbon and hydrogen. In this the availability of the electronegative atom is not there that shows there is no bonding of the hydrogen plus it is dissolved. Also, the hydrocarbons is considered to be a non-polar but as compared to the water, water is a polar

In addition to this, the strong bond is no existed that shows the lower boiling points

Therefore option A, B and D are right

8 0

3 years ago