A2.00 L balloon is filled with helium at 1.40 atm. If the balloon is squeezed into a 0.870 L beaker and doesn't burst, what is the pressure of the helium? A 2.1 atm

Choose all the answers that apply. ionic compounds dissolve easily in water do not dissolve in water have low melting points have high melting points conduct electricity when melted

You are making a solution of calcium chloride dissolved in water. you add solid, stir, and it dissolves. you add just a spatula tip full, stir, and the solid does not dissolve. how could you describe the solutions before and after adding the spatula tip amount

Which of the following electromagnetic waves can create ions?