A radioactive element has an unstable nucleus that emits particles in the form of alpha, beta, or gamma radiation. A stable element has a nucleus that does not emit such particles
This compound is Boron selenate. Molar mass of B2(SeO4)3 is 450.4948 g/mol.
16. FALSE
17. TRUE
18. FALSE
19. TRUE
20. TRUE
Answer:
1 x 10^-4
Explanation:
Use the equation pH = -log[OH-}
Rearranging it [OH-] = 10^-pH
Plugging in we get [OH-] = 1 x 10^-4