Using the periodic table, which of the following elements has the most properties in common with calcium (Ca) ?

potassium (K)

magnesium (Mg)

scandium (Sc)

argon (Ar)

A sample of neon gas occupies 0.220L at 0.860atm. What will be it's new volume at 1.52 atm, assuming the temperature remains constant.

What was John Dobereiner's contribution to the development of the periodic table

How many moles of water were lost if the amount of water lost was 0.406 grams? Do not include units and assume three significant figures in all numbers. Be sure to include the zero before the decimal if the number is less than one.

Why is the burn from 100∘C steam more severe than that from 100∘C water? Why is the burn from 100 steam more severe than that from 100 water? This is a myth and is not true. The steam is at a higher pressure.

What is the total number of moles of H2SO4 needed to prepare 5.0 liters of a 2.0 M solution of H2SO4

How do carbon-12 and carbon-13 differ? Select all that apply. They have different amounts of neutrons. They have different atomic charges. They have different mass numbers. They have different amounts of electrons.

Why arent the jaguars and sloths growing and thriving?

If a spoon is hot after leaving it on the pot that was on the stove. What heat transfer is that.

If a small amount of ferrous ammonium sulfate is spilled when transferring

List one reason as to why historical growth has slowed in recent years.