Type the correct answer in the box. express the answer to two significant figures.
given:
n2 + 3h2 → 2nh3
bond bond energy (kj/mol)
n≡n 942
h–h 432
n–h 386
use the bond energies to calculate the change in enthalpy for the reaction.
the enthalpy change for the reaction is
kilojoules.

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

If you have 5.25 grams of methane (ch4), how many grams of co2 will you produce ?

All cells are made of four types of acids, lipids, proteins, and carbohydrates.