Relative dating determines the relative age of fossils according to
a. their radioactive decay.
b. their size.
c. the layer of rock they're found in.
d. the time of day when they were found.

Theoretically, which metal should be the most reactive? hydrogen lithium francium fluorine

Seltzer water is created by placing water under pressure with carbon dioxide gas. which of the following statements best describe seltzer water: a. the solution will be slightly acidic b. the solution will be slightly basic. the solution will be strongly acidic. d. the solution will be strongly basic. e. the solution will be neutral

Apiece of copper has a temperature of 75.6 0c. when the metal is placed in 100.0 grams of water at 19.1 0c, the temperature rises by 5.5 0c. what is the mass of the metal?