Calculate ∆g ◦ r for the decomposition of mercury(ii) oxide 2 hgo(s) → 2 hg(ℓ) + o2(g) ∆h◦ f −90.83 − − (kj · mol−1 ) ∆s ◦ m 70.29 76.02 205.14 (j · k −1 · mol−1 ) at 298 k. 1. −117.1 kj · mol−1 2. +246.2 kj · mol−1 3. −64.5 kj · mol−1 4. +117.1 kj · mol−1 5. −246.2 kj · mol−1

Which describes interactions between substances and stomata during photosynthesis? check all that apply. oxygen enters stomata. oxygen is released through stomata. carbon dioxide enters stomata. carbon dioxide is released through stomata. hydrogen enters stomata. hydrogen is released through stomata.

If you want to create an electrical current, which situation would produce a solution capable of this

Plz mark brainliest 30 points1) find the momentum of a 12 kg snowball that is rolling with a velocity of 9 m/s.2) an 8 ball with a mass of .5 kg is sitting at rest. it is hit by the cue ball (1 kg) traveling at 2.5 m/s. if the cue ball is at rest after the collision, how fast is the 8 ball traveling after the collision? 3) two football players are running toward each other. if the offensive player is 75 kg and is running 8 m/s, how fast must the 60 kg defensive player run in order for the two players to hit and stop?