What is the bronsted-lowry definition of an acid?
a. a compound that donates protons
b. a compound that accepts protons
c. a substance that increases hydroxide ion concentration
d. a substance that increases hydronium ion concentration

Option (A) is the correct answer.

Explanation:

According to Bronsted-Lowry, the species which release or donate protons are known as an acid.

For example,    

Therefore, it can be seen that HCl dissociates to give ions. Hence, it is an acid.

Thus, we can conclude that out of the given options, a compound that donates protons is the Bronsted-Lowry definition of an acid.

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

personal, she chose to do it.