Who organized the periodic table?

What is the third element in group nine?

What is your moms name?

Chlorine and potassium atoms form ionic bonds, carbon atoms form non-polar covalent bonds with nitrogen atoms, and oxygen forms polar covalent bonds with phosphorus. Explain why these bonds are the types they are.

The nitrogen cycle in an ecosystem would stop without what

In ___, citizens are Constitutionally allowed to vote for their political leaders. However, the ruling party of that country has not allowed people to vote for many years.

How many grams are in 2.30 x 10^24 atoms in silver

Why must model sometimes be changed

Identify the properties of magma that causes it to be forced upward towards earth surfaces

An atom has a mass number of 53 and an atomic number of 26. How many neutrons does it have? Include a formula that explains your calculation.

To determine the molar mass of a protein, a 0.891 g sample of it is added to 5.00 g of water and the osmotic pressure is measured as 0.179 atm at 22.0°C, what is the molar mas of the protein? (The protein is non-ionizing)