Chemistry, 28.03.2020 07:35 tiaholmes31
Which of the following choices best describes the behavior of light as it moves from air to glass?
1-Some of the light waves bounce off the glass and reflect at an equal angle, but in new direction. Some of the light waves are refracted as they bend and move through the glass at a new angle.
2-All of the light waves interference destructively as they enter the glass canceling each other so that no waves exit the glass
3- Somw of the light waves bounce off the glass and reflect at an equal angle, but in a new direction. Some of the light waves are diffracted as they bend and move through the glass at a new angle
4- Some of the light waves bounce off the glass and diffract at an equal angle. Some of the light waves are reflected as they bend and move through the glass at a new angle
Answers: 2
Chemistry, 22.06.2019 00:30, natalie1755
Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1
Answers: 3
Chemistry, 23.06.2019 01:00, only1cache
Which is true concerning the products and reactants of photosynthesis and cellular respiration? a. the products of photosynthesis are sugars and the reactants of cellular respiration are starches. b. the products of photosynthesis are reactants in cellular respiration. c. oxygen is needed for photosynthesis and is given off in cellular respiration.
Answers: 2
Chemistry, 23.06.2019 17:00, mikemofun9079
Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal
Answers: 1
Which of the following choices best describes the behavior of light as it moves from air to glass?
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