A chemical reaction has an increase in entropy and a decrease in enthalpy. What is known about the spontaneity of the reaction?

What is the mass number of a chlorine atom with 17 protons and 18 neutrons?

Epsom salts (magnesium sulfate) have a solubility of 26.2 grams. If you dissolved 26.0 grams of Epsom salts in 100 g of water at 20 degrees Celsius, what type of solution would this be?

why are the units used to express the densities of gases different from those used to express the densities of solids or liquids

What is the difference between a root word and a combining form? List 2 examples of combining form

Which one of the following substances will float in gasoline, which has a density (d) of 0.66 g/mL? mercury (d = 13.6 g/mL) table salt (d = 2.16 g/mL) aluminum (d = 2.70 g/mL) balsa wood (d = 0.16 g/mL) sugar (d = 1.59 g/mL)

1. The simulation shows a quantity of oxygen molecules. What state of matter is this?

Whereas asteroids are compromised primarily of (Blank), comets are compromised primarily of. A. Rocky material; icy material B. permafrost; molten rock C. icy material; rocky material D. Dark cloud; planetary fragmetns

The term for the "family" of organic compounds that is soluble in organic solvents but not in water is:

4. Which hypothesis led to the discovery of the proton? A. Cathode rays should be attracted to a positively-charged plate. B. The nucleus of an atom should contain neutrons. C.

How many moles in 2.0g of carbon dioxide?