Why does a chemical equation need to be balanced to support the law of conversation of matter?

Does a change in energy always indicate that a chemical reaction has taken place? Explain.

Complete the following statements to describe solids, liquids, and gases. Select the correct answer from each drop-down menu. A solid (A. has B. does not have) a definite volume and (A. Has B. Does not) a definite shape. A liquid (A. Has B.

What can account for the increased potential energy when atoms are close together? Question options: A. Their opposite charges B. Electron repulsion C. The breaking of a bond D. Proton to Proton Repulsion

6h2s 6co2 6s0 glucose takes place under aerobic conditions. takes place under anaerobic conditions. the amount of oxygen does not make any difference.

The movement of charged particles cannot pass through an electrolyte to produce an electric current. True False

Concerning the 10.0 mL of 0.50 M NaCl diluted to 100 mL of solution: When a solution is diluted, does the dilution change the number of grams dissolved? yes no

What causes element name to change

Charles's law states that

If 30mL of 0.5M KOH is needed to neutralize 2M HCl, what was the volume of the acid?

A ratio wave travels 186,000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile=1.61 km)