HELP PLEASE I NEED HELP THANKS I LOVE U How many moles of potassium nitrate (KNO3) are there in 0.300 L of a 2 molar solution?

Seawater contains approximately 3.5%nacl by mass and has a density of 1.02 g/ml. what volume of seawater contains 7.5 g of sodium?

Which orbitals form a pi bond? a.the s orbital and three p orbitals b.the s orbital and two p orbitals c.overlapping p orbitals d.overlapping hybrid orbitals

Which atom or ion is the largest? 0 a. 0 0 0 0 e. li