Calculate the pH of a 0.345 molarity solution of formic acid, where Ka = 1.8*

What are the charges of the subatomic particles by choosing the answer from the drop down menu. protons have a (+1,0,or-1). (protons,neutrons,electrons) have a 0 charge. 3.) electrons have a (+1,0,-1)

What is the percent by mass of oxygen in fe2o3

What produces wave a)sound b) heats c)transfer of energy d)vibrations