A 70-kg adult and a 35-kg child face each other on ice skates. Applying Newton's Laws of Motion, what will happen if the two skaters push against each other?

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

What is the mass of 4 molecules of co2

Calculate the molarity of each of the following solutions. part a) 0.12 mol of lino3 in 5.5 l of solution part b) 60.7 g c2h6o in 2.48 l of solution part c) 14.2 mg ki in 100 ml of solution