Atoms change their chemical identity as the number of protons in their nuclei change.

a. nuclear fission
b. both
c. nuclear fusion

The clouds are grey and ground is wet. a quantitative b qualitative

What is the ima of the 1 st class lever in the graphic given? 2 3 0.5

You encounter a solution that is acidic and you decide to test it by adding a small amount of a strong acid. the ph lowers slightly but is approximately unchanged, and still remains acidic. what can you say about the solution? a. it is a buffer solution. b. it is not a buffer solution it is a strong acid solution. d. the solution has been neutralized. e. the solution has excess acid present