3 years ago

When potassium chromate, k2cro4, dissolves in water, what ions are produced?

1 answer:

7 0

When potassium chromate dissolves in water, the ions that are produced are potassium and chromate.

This can be expressed as follows:
Potassium chromate in water will give the following ions:
2K+ + CrO4^2-

You might be interested in

The blank solution used to calibrate the spectrophotometer is 10.0 mL of 0.2 M Fe(NO3)3 diluted to 25.0 mL with 0.1 M HNO3. Why

Sliva [168]

FeNCS+ product...............thats how you do it i believe

4 0

3 years ago

Is gamma rays blocked very easily

Leto [7]

No, since they are the strongest type of ray only elements that are dense can block them.

5 0

3 years ago

Mummification frequently preserves fine detail and internal organs true or false

mariarad [96]

I believe thats false. think about the mummys youve seen? do you see fine detail and intact organs

6 0

3 years ago

Is paper catching on fire a physical or chemical change?

igomit [66]

hello there

the answer is chemical change

the paper if self is phyical but since it went through a process of carbon dioxide and other components its now hat is called a chemical change

thank you

best regards Queen Z

3 0

3 years ago

Read 2 more answers

A first-order reaction has a half-life of 16.7 s . How long does it take for the concentration of the reactant in the reaction t

andrew11 [14]

It takes 33.4 s for the concentration of A to fall to one-fourth of its original value.

A half-life is the time it takes for the concentration to fall to half its original value.

Assume the initial concentration is 1.00 mol/L. Then,

$\text{1.00 mol/L }\stackrel{\text{1st half-life }}{\longrightarrow}\text{ 0.50 mol/L } \stackrel{\text{ 2nd half-life }}{\longrightarrow}\text{0.25 mol/L}\\$

The concentration drops to one-fourth of its initial value in two half-lives.

∴ Time = 2 × 16.7 s = 33.4 s

5 0

3 years ago