The decomposition of water into hydrogen gas H2 and oxygen gas O2 can be modeled by the balanced chemical
equation
A. H₂ + O₂ -> H₂O
B. H₂O -> H2 + O2
C. 2H₂ + O₂ → 2H₂O
D. 2H₂O → 2H₂ + O2

Two polarizers are oriented at 24.0∘ to one another. light polarized at a 12.0-degree angle to each polarizer passes through both. what is the transmitted intensity (%)?

Which changes would result in a decrease in the gravitational force btween two objects? check all that apply

Aphoton is absorbed by an electron that is in the n = 3 state of a hydrogen atom, causing the hydrogen atom to become ionized. very far away from the nucleus, the released electron has a velocity of 750,000 m/s. what was the wavelength of the absorbed photon?