A glass of water contains 1.2 x 1024 molecules of water. An additional 4.0 moles of water are poured into the glass. How many moles of water are in the glass?

How do you calculate atomic mass from an isotope?

Which of the following elements would have 2 electrons in the outer energy level?

Three balloons filled with three different gaseous compounds each have a volume of 22.4 l at stp. would these balloons have the same mass or contain the same number of molecules?

Flame tests energy level

What is one characteristic of all living organisms

It requires 0.0780L of a 0.12 M HCl solution to completely neutralize 0.0280L of an unknown LiOH solution. What is the concentration of the unknown LiOH solution?

Which best describes the two ways that energy is measured A. In convection and in temperature B. In temperature and in radiation C. In radiation and in convection D. In wavelength and in temperature

What usually happens to the outer electrons of metallic atoms when they combine chemically with nonmetallic atoms?

How many moles of ca atoms are in 534.0 g ca?

Select all that apply. reactions between atoms occur when: an atom seeks to fill its outer shell of electrons an atom seeks to balance its positive and negative charges the reaction will result in paired electrons