Convert 600mL Br2 to moles

(Please help and show work) ​

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

What shape would a molecule with two bound groups and two lone pairs have?

What substance has a mass of 9.5g and volume of 2.1cm^3