Which limitation of fuel cells is the most likely reason why people are concerned about using fuel cells in cars? Hydrogen gas is volatile.
o Water contains a lot of hydrogen atoms.
O Fuel cell cars cannot drive at extreme speeds.
O Fuel cell cars are very quiet.

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge

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)