What evidence of a chemical reaction might you see dropping an alka seltzer

Which data can be measured quantitatively?

Using the idea that reactions occur as a result of collisions between particles, explain why reaction rates depend on the concentration of the reactants.

When drawing the Lewis structure for a molecule, after drawing the skeletal structure and distributing all of the electrons around the the terminal atoms, what actions should be taken if the central atom does not have a complete octet

Which of the following would increase the dissolution rate of most solids in a liquid? A. Decreasing the temperature of the solvent B. Grinding the solid into smaller pieces C. Stirring much more slower D. Adding more solid to the liquid

What are the elements and number of atoms in the compound c6h12o6?

A cylinder contains 4.0 g of nitrogen gas. A piston compresses the gas to half its initial volume. Afterward, by what factor has the mass density of the gas increased?

The balanced equation below represents the reaction between magnesium metal and hydrochloric acid to produce aqueous magnesium chloride and hydrogen gas. Mg (s) + 2HCl (aq) = = > MgCl2 (aq) + H2 (g) A piece of Mg (s) has a volume of 0.

What is the molarity of a solution prepared by dissolving 33.4 g of sodium chloride in some water and then diluting the solution to a volume of 300.00 mL?

Think about how pressure relates to volume and how gas behavior would change in different volumes. Which of the following will have the largest positive value for Sº? A) 1 mole of helium gas at 1 atm pressure.

Does a reaction stop once it has reached equilibrium? Explain