In the chemical symbol for nitrogen gas, N2, what does the "2" represent?

How many electron, protons, and neutrons does gold have? How many protons, electrons, and neutrons are in an atom of gold?

How many moles of ions are in 285 ml of 0.0150 m mgcl2?

What is the chemical structure of vinyl chloride?

Consider the following reaction at equilibrium. What effect will adding more SO3 have on the system? SO2 (g) + NO2 (g) ⇌ SO3 (g) + NO (g)

A student needs 15.0 g of ethyl alcohol for an experiment. If the density of the alcohol is 0.789 g/mL, how many milliliters of alcohol are needed?

There are three ways that heat can move from one place to another. Use examples pertaining to how heat is transferred from the sun to Earth and in the land, ocean, and atmosphere to explain all three.

What is temperature? A measure of the kinetic energy of a system. Energy of a system. How hot something is. A measure of density.

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)