Can someone me with those questions i ask yesterday

relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture the air can hold.

so d

what are the choices?

56 moles of   lieter in chemistry

each chemical family is represented as a group or column on the periodic table. based on chemical properties, there are 6 types of chemical families. group 1 represents alkali metals, group 2 represents alkaline earth metals, groups 3 to 12 represent transition metals, groups 13 to 16 represent non-metals and other metals, group 17 represents halogens and group 18 represents noble gases.