About 3% of the water on Earth is freshwater. Only about 40% of that freshwater is available for human use. Why is so much freshwater unavailable for human use?

What type of potential energy is stored in the sugars produced by plants?

What is always conserved in a chemical reaction? A. Mass is always conserved in a reaction. B. Energy is always conserved in a reaction. C. Mass and energy are both conserved. D. Nothing is always conserved in a reaction.

When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. what is wrong with your setup, and how can it be corrected?

What are chemical reactions?

Magnesium chloride, mgcl2 (s) reacts with water vapor to form magnesium oxide, mgo (s) and hcl ( g. what is the balanced chemical equation for this reaction?

During a laboratory experiment you discover that an enzyme-catalyzed reaction has a delta G of - 20 kcal/mol. If you double the amount of enzyme in the reaction, what will be the delta G for the new reaction

A liquid mixture in which particles can be seen and easily separated by settling or filtration is a a. solution. b. suspension. c. solvent. d. solute.

Which material best absorbs sound waves in a room? a. heavy curtains b. hardwood floors c. brick walls d. cement floors

Does density of water depend on the amount of water present?

Which of the following air fronts does not move? a Occluded front b Cold front c Stationary front d Warm front