What is Al-27 in chemistry?

What is the oxidation number of all elements in MnSO4?

A 0.22 M solution of a weak acid HA dissociates such that 99.5% of the weak acid remains intact (i. e., remains as HA). To the nearest hundredths, what is the pH of the solution?

How did the electron change the model of an atom

What is the molarity of a solution, made from 10 mL of a 1.00 M solution, and then diluted by adding 90 mL water?

Jean is taking a quiz on waves. She is asked to measure the wavelength of a longitudinal wave. What should she do? A. measure from crest to trough B. Measure from rarefaction to rarefaction. C. Measure from crest to crest. D.

Which oxygen pachages materials and distributed them throughout the cell

How many atoms in 3 mol zn

Isotopes: are atoms of different elements which have the same mass are atoms of the same element with equal numbers of neutrons are atoms of the same element with different numbers of neutrons are atoms of the same element with equal numbers of

What would happen to the volume of a sample of gas if the temperature was decreased at the same time the pressure was increased?

How do the compounds that cause acid rain spread from their source?