Which of the following best defines an acid?

A) An acid has a pH of 7.

B) An acid has hydroxide ions.

C) An acid has fewer positive ions in solution.

D) An acid has more hydrogen ions in solution.

The number that represents a neutral pH is

When bromobenzene reacts with propene in a heck reaction (in the presence of pd (php3) 4 and et3n), two constitutional isomers are obtained as the products. give the structures of the two products. interactive 3d display mode?

Calculate the solubility (in g/L) of CaSO4 (s) in 0.500 M Na2SO4 (aq) at 25°C. The sp of CaSO4 is 4.93*10^-5.

Which subatomic particle is responsible for chemical properties of atoms? a. protons b. neutrons c. electrons d. neutrons and protons user: what is the maximum number of electrons in the first electron shell, closest to the nucleus? a. 1 b. 2 c. 4 d.

How many moles of glucose, CGH120, are in 9.4 grams. Round your answer to three decimal places.

Samuel adds a teaspoon of salt to a glass of water. He notices that the song disappears. Samuel takes a sip to discover that the water taste salty. What kind of change has occurred?

How are the physical and chemical properties of atoms represented on the periodic table of elements

how do we know isotopes exist?

Is albinism a dominant or recessive trait

If T = dominant, and t = recessive, what would the genotypes be?