What is the meaning of 1s2 electron configuration (tell what 1 means, the s means and the superscript of 2 means) ?

The individual dipole moments in ammonia (NH3) do not cancel each other out. What is the strongest force that exists between molecules of ammonia?

What is the chemical formula of sulfur dioxide? A. SO B. SO2 C. SO3 D. S2O

Iron is extracted from fe 2o 3 by a reaction with carbon (c) at very high temperature. if you take 2.86 x 10 4 g of fe 2o 3 to react with 9.05 x 10 3 g of c, how many moles of fe 2o 3 will be used? 2fe 2o 3 + 3c → 4fe + 3co 2

How does ionization energy change on the periodic table?

Can Chlorine be harmful to any of the earth's ecosystems? If so how?

Describe a proton, neutron, and electron. Where are these particles located inside an atom.

A sample of gas is at 273°K and 2.00 atm with a volume of 6.00 liters. When the gas is compressed to 3.00 liters and the pressure increases to 3.00 atm, what is the new temperature of the sample?

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