True or False: The dots are placed as

far apart as possible because they

represent electrons, with the same

negative charge, that repel each

What happens when hydrochloric acid is added to pure water?

A flashlight uses the chemical energy stored in a battery. this chemical energy is eventually converted into which two forms of energy? mechanical and nuclear radiant and thermal thermal and mechanical nuclear and electrical

What structure forms when one tectonic plates is pushed below below another and liquid rock rises to the surface?

How do I name this chemistry question

Which of these pairs would form an ionic bond? A. K and Br B. C and H C. H and O D. Cu and Cu

How is the ocean important to human survival? restate the question

A sample of pure lithium contains 7.99% lithium by mass. What is the % lithium by mass in a sample of pure lithium nitrate that has twice the mass of the first sample?

What ecosystem is being described in the passage?

In the enzyme reaction above, catechol is the substrate, oxygen is a reactant, catechol oxidase is the enzyme, benzoquinone is the product, and water (H2O) is a by-product. Which of the following will decrease the rate of this reaction? a.

How do acids and bases affect the quality of freshwater sources?