A small amount of a solid unknown compound was placed into a test tube containing isopropanol. The solid floats on top of the liquid isopropanol. Is this unknown compound considered to be soluble or insoluble?

Why don't these gases tend to form chemical bonds? A. They have 8 electrons in their outer shell and don't need more to be stable. B. They don't have any electrons Need an answer. No Guessing.

An example of a radioactive isotope is waht

Which metalloid is in the fourth period and the same group as carbon?

The equation hcl (aq) + h2o (l) ↔ h3o + (aq) + cl - (aq) properly depicts the behavior of hydrochloric acid in water. the equation hcl (aq) + h2o (l) ↔ h3o + (aq) + cl - (aq) properly depicts the behavior of hydrochloric acid in water. a. True b.

If an atom has an atomic number of 6 and and an atomic mass of 12 how many electrons does it have

which one of these reactions is energy released? A all reactions B no reactions C endothermic reactions D exothermic reactions

Why do ionic compounds conduct electricity when dissolved in water but most covalent compounds do not?

Which of the following is an example of a molecule? F C Al O2

Organize the items listed into the proper sequence of events for gas exchange. a: O2 is transported to cells by circulatory system. b: O2 is drawn into the lungs during inhalation. c: Cells use O2 and generate CO2. d: CO2 is exhaled.

Research about the reaction of baking soda and vinegar