The whitening toothpastes showed differences in their physical-chemical properties. All toothpastes promoted changes to the surface, probably by the use of a bleaching agent.

5 0

4 years ago

1- the Nalt and Gil- Cu2+ ad out- what are the spectator ions in this reaction

Mrac [35]

Answer:

cu2 is 5he correct answer

3 0

2 years ago

How does government ensure a safe environment for inverters?

Anestetic [448]

hope it helps please brainliest

7 0

3 years ago

If an object has more positive charges than negative charges, the object has an overall?

djyliett [7]

The object has an overall positive charge.

7 0

3 years ago