subject
Chemistry, 30.11.2019 05:50 jazzwok

The energy change, ∆h, associated with the following reaction is +81 kj. nbr3(g) + 3 h2o(g) → 3 hobr(g) + nh3(g) what is the expected energy change for the reverse reaction of nine moles of hobr and two moles of nh3?

ansver
Answers: 2

Another question on Chemistry

question
Chemistry, 03.02.2019 01:19
The earth's moon is unusually large. two popular theories of the moon's origin include the "sister world" hypothesis, which states that the moon formed from the same materials as the earth, near enough to the earth that they fell into orbit around each other. a second theory is the "capture" hypothesis, in which the moon formed elsewhere in the solar system, and the earth's gravity pulled it into its orbit. studies of what the moon is made of indicate that some of its materials had to come from the earth or from the same area of the solar system where the earth had formed. at the same time, the moon does not contain much of the material that makes up the earth's core, so the moon could not have formed from the same materials as the earth. how do the two facts above affect the described theories of the moon's origin? a. they show that scientists will never agree on where the moon came from. b. they show that more experiments on moon formation need to be done. c. they show that no theory accounts for the existence of the moon. d. they show that neither theory is complete and entirely correct.
Answers: 1
question
Chemistry, 02.02.2019 23:34
Match the following items. 1. high-intensity bundle of energy being emitted from some decaying nuclei gamma ray 2. particle radiating from the nucleus of some atoms beta particle 3. negative particle identical to an electron but radiating from a decaying nucleus alpha particle
Answers: 1
question
Chemistry, 02.02.2019 11:27
Describe the particles of all three phases of matter in the root beer float. (how are the particles arranged and moving? )
Answers: 3
question
Chemistry, 01.02.2019 21:34
What are the variables in gay-lussac’s law? pressure and volume pressure, temperature, and volume pressure and temperature volume, temperature, and moles of gas
Answers: 1
You know the right answer?
The energy change, ∆h, associated with the following reaction is +81 kj. nbr3(g) + 3 h2o(g) → 3 hobr...
Questions
question
Mathematics, 04.03.2018 23:31
Questions on the website: 6551841