In a titration, 15.0 mL of a 2.5 M NaOH(aq) solution exactly neutralizes 30.0 mL of an HCl(aq) solution
What is the concentration of the HCl(aq) solution?
A) 1.25 M
C) 10.00 M
B) 5.00 M
D) 1.50 M

What element breaks down into yttrium-90?

Which statement best describes the relationship between period and frequency of light waves? a) in wave b the period increases and the frequency decreases from wave a. b) in wave a the period increases and the frequency decreases from wave b. c) in wave b the period is shorter and the frequency is greater than in wave a. d) in wave a the period is shorter and the frequency is greater than in wave b.

What is the solubility of substance?