How many valence electrons are in the element nitrogen

What is the mass of one mole of Chromium atoms?

Which organic compound is produced when three fatty acid molecules bond to one glucose molecule?

Why does the nitrogen concentration decrease after hydrogen is added? n2 (g) + 3h2 (g) ⇌2nh3 (g) why does the nitrogen concentration decrease after hydrogen is added?

Select two statements that describe how elements in the same group are similar to each other. Remember to select two answers A: Elements in the same group share the same number of valence electrons.

The primary hazard associated with most flammable liquids is: a. toxic vapors b. faulty containers c. radioactivity d. fire or explosion

How many molecules of sodium nitrate are produced when 17 g of sodium azide, NaN3, react according to the following equation: NaN3 (aq) + AgNO3 (aq) - --> AgN3 (s) + NaNO3 (aq) Question options: 3.7x1023 1.6 x 1023 1.85x1023 6.02x1023

Which statement is true for the given reaction? Zn + PbSO4

A student states the following: "Since acetone (nail polish remover) evaporate more readily than water, one would assume that acetone has weaker intermolecular forces than water." Evaluate their claim. (2 sentences)

A catalyst can only be used once. True False

On what basis do we distinguish between substances and separate them from one another?