Why is neon in the same group as helium on the periodic table

1. A sample of oxygen has a volume of 2.1 L when the pressure is 375 torr, what is the volume when the pressure is 663 torr?

Shawn conducted an experiment and did not get the results he was expecting. What should he do first? A) Shawn should write conclusions. B) Shawn should share his results. C) Shawn should explain what he thought should have happened.

If the center atom has four single bonds around it, what type of molecular geometry is present

What are the rules of the periodic table that have to do with the amount of valence electrons in an atom?

What two things do you need for a rocket to be powered? Be specific.

To determine the moles of ammonium chloride produced, we need to find the limiting reactant. H2O is present in an unlimited amount, so it cannot be the limiting reactant. Let's then determine the amount of each remaining reactant present (in moles).

Which of the following is a precipitation reaction? a. 2 LiI (aq) + Hg2 (NO3) 2 (aq) →Hg2I2 (s) + 2 LiNO3 (aq) b. NaCl (aq) + LiI (aq) → NaI (aq) + LiCl (aq) c. HCl (aq) + KOH (aq) → KCl (aq) + H2O (l) d.

How many outmost electrons do lithium and potassium have

Which of the following is a heterogeneous mixture Air Salt water Steel Soil I think it's soil but I'm not positive

When 40.5 g of Al and 212.7 g of Cl2 combine in the reaction: 2 Al (s) + 3 Cl2 (g) - -> 2 AlCl3 (s) b) How many moles of AlCl3 are formed?