The __________ Serves as a Base on Which the Ends

question 3

Short Answer

The __________ serves as a base on which the ends of the first floor joists rest.

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Definitions:

HNO3

Nitric acid, a highly corrosive and toxic strong acid used in the production of fertilizers, explosives, and in the production of other chemicals.

Reactivity

The inclination of a material to participate in chemical changes, alone or in combination with other elements, leading to the liberation of energy.

Chlorine

A highly reactive, greenish-yellow gaseous element used in water purification and the production of numerous chemicals.

Aluminum Chloride

A chemical compound with the formula AlCl3, widely used in the chemical industry as a catalyst and as a component in a variety of chemical reactions.