A costumer wants to buy a 1:1 mixture of blue and red beans. Each blue bean is twice as massive as each red bean. If the clerk measure out five kilos of red beans, how many kilos of blue beans must be measure out?

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.

the pseudoscience are like beliefs, theories, or like practices that are considered scientific