A trend in the periodic table means?

The Atomic weight of an element is equal to the number of what?

What are proteins made from? what makes each protein different from the next?

You are building model cars. Each car has four tires, two doors, and body. If you have 16 tires, 10 doors and 7 car bodies, how many model cars can you build? What is left over after you have built all of the cars?

If more sugar were added to the solution on the left side of the tube, what would happen to the water level on the right side of the tube?

Is boiling water considered physical or chemical bond

Which element is in the same period as Na, Li, or, Mg

NH4 + (aq) + OH - (aq) + H + (aq) + Cl - (aq) →NH4 + (aq) + Cl - (aq) + H2O (l). What is its net ionic equation?.

What is milk best described as? solution, suspension, compound, or colloid?

What is the density of the marble when the mass = 10g

What is the difference between polar and nonpolar bonds