Chemistry, 24.09.2019 20:00 michael11948
Aballoon is inflated from a negligible initial volume to a final volume of 200 cm3. how much work is done by the balloon on the surroundings if the pressure opposing the expansion is a. p- 0.1 mpa b. p = 0.05 mpa c. p-0 mpa d. p= 0.3 mpa e. can you think of (geographical) locations where each of the "surroundings" pressures given in parts a-d would be realistic?
Answers: 2
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An experimental procedure requires a 10 ml of acid to be dissolved
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Mary is conducting an experiment on how pollution affects plant growth. how can she ensure that her data are reliable?
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Chemistry, 22.06.2019 17:00
Astable electron arrangement for an atom is one that does not easily change. how is this arrangement arrived at? a. valence electrons are transferred or shared to create a full outer shell of electrons. b. valence electrons are discarded into space to create a full outer shell of electrons. c. protons (positive charge) pair with valence electrons (negative charge) to create a strong bond. d. outer shells with valence electrons are transferred or shared.
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Chemistry, 22.06.2019 20:20
Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .
Answers: 3
Aballoon is inflated from a negligible initial volume to a final volume of 200 cm3. how much work is...
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