Classify each of these as an element, a compound, or a mixture: uranium, pail of garbage, popcorn, air, diamond, gasoline. Hint: These are two of each.

100mg magnesium reacts with 20ml of 1.0m hcl

What best discribes the relationship between wavelength and frequency in a electromagnetic wave

Count the number of each type of atom in the equation below, and then balance the equation. write in the numbers of atoms and coefficients. add a 1 if there should be no coefficient. cs2(l) + o2(g) → co2(g) + so2(g) c [ ] s [ ] o > c [ ] s [ ] o [ ] cs2(l) + [ ] o2(g) > [ ] co2(g) + [ ] so2(g)