If the pH of an acid is 4.0, what is the pOH?

0.0027432 using scientific notation

A lithium atom has three protons, three neutrons, and three electrons. What is the overall charge on this atom?

Which pair of organs, located in the lower back, collects liquid and waste from the blood? A. liver B. lungs C. kidneys D. skin

If 20 grams of aluminum react with 200 grams of bromide to form aluminum bromide and no aluminum is left after the reaction, but 23 grams of bromine remained unreacted. how many grams of aluminum bromide were formed

Which of these changes involved a physical change and not a chemical change?

Which element would you expect to be more metallic? (a) S or Cl (b) In or Al (c) As or Br

Determine how many protons, neutrons, and electrons are in a bromine atom that has a mass number of 73

Describe the forces both attractive and repulsive that occur as two atoms move closer together.

What is cement used for

Why did one liter of nitrogen prepared by lord rayleigh appear to have a greater mass than the other liter prepared by a different method?