Calculate the molarity when 2 moles of solute dissolves in 0.5 L of solution

At 450 mm hg a gas has a volume of 760 l, what is its volume at standard pressure

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

Which statement explains why the bonds between non metals tend to be covalent? the bonds are found to be nondirectional they have large differences in electronegativity they have small differences in electronegativity they have ions that produce an electrostatic pull