What state of matter is the body mostly made up of

in your own words. explain why it was possible for mendeleev to organize the elements into the periodic table

A temperature change in a reaction indicates a physical change. True False

How do intermolecular forces determine the range of motion of particles in solids and liquids?

When is heat exchanged during the refrigeration cycle? During the initial condensation and final expansion of the refrigerant. During the initial expansion and final condensation of the refrigerant.

17, A compound is a substance composed of two or more elements that are (1) chemically combined in a fixed proportion (2) chemically combined in a variable proportion (3) physically mixed in a variable proportion ((4) physically mixed in a fixed

How much heat (in kJ) is evolved in converting 1.00 mol of steam at 160.0∘C to ice at - 50.0∘C? The heat capacity of steam is 2.01 J/g⋅∘C and of ice is 2.09 J/g⋅∘C.

When a polar molecule causes a charge redistribution in a nonpolar molecule, what are the molecules of the mixture most likely experiencing?

How many moles are in 458 grams of Na2SO4

What are the types of radioactive rays that can be produced during a radioactive decay?

Why is it important that acids and bases have different properties?