A student wants to determine whether an unknown solid is an ionic compound. He puts some in water and finds that it does not dissolve. He says that this proves the solid is ionic. Which best evaluates the student's reasoning?

Is sponge cake a heterogeneous mixture

A discovery only brings extensive change when

If water (p=998 kg/m", u = 10-3 Pa. s) flows through a 50 mm-diameter pipe at 2 m/s, determine the velocity of carbon tetrachloride (p=1590 kg/mº, u=0.958 x 10-Pa.

The pressure at 99 feet below the surface of the ocean is: greater than the pressure at sea level greater than the pressure 33 feet below the surface about 59 pounds per square inch all of the above

What's the difference between absolute pressure and gauge pressure in psi

Identify the precipitate (if any) that forms when KOH and Cu (NO3) 2 are mixed

An atom has a mass number of 27 and 14 neutrons. what is the atomic number of this atom?

The two forms of oxygen, O2 (g) and O3 (g), have (1) different molecular structures and identical properties (2) different molecular structures and different properties (3) identical molecular structures and identical properties (4) identical

What is the difference between a distraction and a reaction

if carbon which has an electrongavity of 2.5 bonds with hydrogen, which has an electrongavity of 2.1, the bond between the two atoms will be classified as a (n) covalent bond