1 N2 + 3H2 → 2 NH3 How many grams of hydrogen, H2, are necessary to react completely with 25.0 g of nitrogen,
N2?

Jewelweed, a flowering plant, has seed pods that burst open when touched and forcefully eject their seeds. these structures are favorable because they a. can cause genetic changes to occur. b. prevent germination within the seed pod. c. aid in the dispersal of the species. d. attract insects that aid in pollination.

Which of the following statements is true about planck’s law

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