What is the molar mass of PbCl2

The nucleus of an atom of Cobalt-58 contains: 1. 27 protons and 31 neutrons 2. 27 protons and 32 neutrons 3. 59 protons and 60 neutrons 4.60 protons and 60 neutrons

What is the chemical fluoride for carbon tetrafluoride?

Which of the following gives the correct possible values of I for n = 4? A) 0,1,2,3 B) - 4,-3,-2,-1,0,1,2,3,4 C) 0,1,2,3,4

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

The energy needed to remove one electron from a gaseous potassium atom is only about two-thirds as much as that needed to remove one electron from a gaseous calcium atom, yet nearly three times as much energy as that needed to remove one electron

5.75 moles of H2 gas to liters at STP

3.01 x 10^23 atoms of rubidium

What are the values of STP

Is helium is lightest monatomic element chemical properties

If the temperature is kept constant, what change in volume would cause the pressure of an enclosed gas to be reduced to one-third of its original value?