Answer:
Explanation:
Hydrogen and hydroxide ions reacts to form water in a neutralisation reaction
Answer:
some kind of chemical of which i do not know
Explanation:
Answer:

Explanation:
The time taken by the light to travel a given distance is defined as:

Here c is obviously the speed of light. Now we convert the average distance form Venus to Earth to meters:

Finally, we calculate the minutes taken by the light to travel from Venus to Earth:

Red is refracted the least and violet is refracted the most
It is an example of rolling friction because balls roll.
Answer is ROLLING