Which of the following elements is an example of metal that is not a transition metal?

question 19 options:

hg

pb

cu

ag

If a plot weight (in g) vs. volume (in ml) for a metal gave the equation y= 13.41x and r^2=0.9981 what is the density of the metal?

There is one girl i like and i don't know how to tell her that, i have a feeling she knows but if she doesn't i don't want to make a fool out of myself how is one way to boost my confidence on asking her out

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?