Propane burns in air to produce carbon dioxide and water. what is this type of chemical reaction called? a) synthesis b) combustion c) decomposition d) single replacement

1) these are barrel shaped microtubules in most animal cells, that organize the spindles during cell division

Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.

Displacement is the slope of a velocity vs. time graph a. true b. false