Rain or snow that has a lower pH than that of normal rainwater. Group of answer choices

acid precipitation

particulate matter

photochemical smog

Classify this reaction: 2al+n2-> aln.

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.

If a particle has z = 25 and 23 electrons, what is its charge?