If element X has 25 protons, how many electrons does it have?

Arrange the following in order of increasing energy. 1. visible radiation, ultraviolet radiation, infrared radiation, microwaves, x-rays 2. microwaves, ultraviolet radiation, visible radiation, infrared radiation, x-rays 3.

This law brings Boyle's, Charle's, Avogadro's, and Gay-Lussac's laws together in one neat, easy to use package: PV = nRT.

Calculate the energy required to melt 12.4 g of ice at 0 oC. The molar heat of fusion for ice is 6.02 kJ/mol.

In Chem 1B your final course grade is made up of 60% of your lecture grade and 40% of your lab grade. Your lab grade is composed of your report sheets, lab exams and seminar quizzes.

How many molecules of ascorbic acid (vitamin c, c6h8o6) are in a 500 mg tablet?

For the baeyer-villiger oxidation of cyclohexyl methyl ketone

What will happen if the density of an object is less than the density of water?

Which cannot be separated into simpler substances? compound element solution mixture

What jobs involve chesmistry

Think about a neutral magnesium atom. Then think of a magnesium ion with a 2+charge. How are these two alike? How are they different? Be sure to use the terms proton, neutron, and electron in your answer.