PLZ HELP WILL GIVE BRAINLIST

(actually it's 8th grade science)

Which chemical reaction involves the most hydrogen atoms?

A. 6CO2 + 6H2O + light → C6H12O6 + 6O2

B. C3H8 + 5O2 → 4H2O + 3CO2 + energy

C. 10Fe + 7O2 + H2O → 5Fe2O3 + H2

D. HC2H3O2 + NaHCO3 → NaC2H3O2 + H2O + CO2

Can you think of a way a rock unit with an older fossil could be above a rock until with a younger fossil? describe the scenario.

First, launch the video below. you will be asked to use your knowledge of physics to predict the outcome of an experiment. then, close the video window and answer the question at right. you can watch the video again at any point. part a as in the video, we apply a charge +q to the half-shell that carries the electroscope. this time, we also apply a charge –q to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? view available hint(s) as in the video, we apply a charge + to the half-shell that carries the electroscope. this time, we also apply a charge – to the other half-shell. when we bring the two halves together, we observe that the electroscope discharges, just as in the video. what does the electroscope needle do when you separate the two half-shells again? it deflects more than it did at the end of the video. it deflects the same amount as at end of the video. it does not deflect at all. it deflects less than it did at the end of the video. submit

Individuals who live below the poverty line get seriously ill more often than those who do not what could be the hidden variable in this situation?