Answer:
c. 3.
Explanation:
pOH = -log(1x10^-11)
14-11 = 3 (pOH + pH = 14)
- Hope that helps! Please let me know if you need further explanation.
Thermal (heat) energy moves one substance to another is the mainstay of the molecular theory of heat.
Answer:
C. Electrons equal the number of protons
Explanation:
An atom is electrically neutral because...
a. Neutrons equal the number of protons
b. Proton forces pull on the neutrons
C. Electrons equal the number of protons
d. Electrons equal the number of neutrons
to be electrically neutral, the number os positive charges from thethe negative charges from the electrons
so
the number of protons must equal the number of electrons
ignore neutrons, they have NO charge
so
C. Electrons equal the number of protons
Answer: 0.4578 g
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
n= moles of solute
= volume of solution in ml = 25.0 ml
Thus 0.4578 g of nickel(II) nitrate is to be dissolved in 25.0 mL of 0.100 M solution.
Depends how many sig figs you are rounding to so I won't round to tenth or hundredth but the answer is 2.037 * 10^7