Isotopes of an element will always have the same A. number of protons. B. number of neutrons. C. number of electrons. D. mass.

10 mL of 6 M HCL are diluted to 1 L with distilled water. What is the molarity of the dilute solution?

How many grams of h2 are needed to react completely with 44.1 grams of c? c + h2 yields ch4 be sure to balance the equation. 7.40 grams 14.7 grams 88.2 grams 132 grams?

How many moles of hcl are present in 40.0 ml of a 0.035 m solution?

How many moles are in 1.6 x 10^25 atoms of Fe

Which of the following elements is in the same period as phosphorus? A. CarbonB. Magnesium C. NitrogenD. Oxygen

It would take one light year to travel to the sun? True or false?

A specific, electrically neutral atom of boron has 5 protons, 5 electrons, and 6 neutrons. what is the mass number of this atom of boron? 6 5 11 16

When does hail happen?

For the reaction, calculate how many moles of the product form when 0.012 mol of O2 completely reacts. Assume that there is more than enough of the other reactant. 4Al (s) + 3O2 (g) →2Al2O3 (s) Express your answer using two significant figures.

Nuclei with too many or too few neutrons are?