What is true when a reaction has reached equilibrium?

A. the reaction has stopped.

B. the concentration of the products is changing.

C. the concentration the products and reactants is constant.

D. the concentration of the reactants is changing.

An 7.50 mL aliquot of a 125 ppm stock Red 40 dye solution was diluted to a final volume of 25.0 mL with deionized water. What is the concentration of the dilute Red 40 dye solution (in ppm) ?

Which example is a biomass energy source? natural gas the sun water sugarcane

True or False : During neap tides, low tides are highest because the Sun, Earth, and the Moon form a right angle.

The Double V Campaign was a federal advertisement program that pushed the sale of war bonds. a. True b. False

What is matter? What is it made up of?

Why is a chemical indicator added to the flask in which a titration will occur? to show when enough base has been added to determine the starting pH of the solution to neutralize the acid before adding the base to identify the starting volume of

Mathematically define heat capacity

Based on what you read on the Marie Curie and the Science of Radioactivity website, name the scientists who shared the Nobel Prize in Physics in 1903 and describe their contributions that were recognized by the award.

What does aluminum hydroxide and calcium sulfate produce

Balnce the following molecular equation and write net ionic equation NaOH+H2SO4-Na2SO4+H2