HELP M The anion formed from an oxygen atom is called a(n)
a.
oxygen ion.
c.
carbon dioxide.
b.
oxide ion.
d.
nitrous oxide.

From center station, a train departs every 30 minutes on the fast line and a train departs every 50 minutes on the state line. if two trains depart from center station at 8: 00 a. m., one on each of the two lines, what is the next time that two trains, one on each line, will depart at the same time?

If a substance is in the gas phase, which of qualities of the gas will stay constant? a: volume b: mass c: shape d: position of particles

Who was the first scientist to measure speed as distance over time?