Which of these are physical changes in matter? check all that apply
boiling water
a pen...
Chemistry, 25.09.2019 05:30 broyochey1
Which of these are physical changes in matter? check all that apply
boiling water
a pencil being sharpened
exploding dynamite
freezing water
rotting cheese
Answers: 2
Chemistry, 21.06.2019 14:00
Acar tire has a pressure of 2.38 atm at 15.2 c. if the pressure inside reached 4.08 atm, the tire will explode. how hot would the tire have to get for this to happen? report the temperature in degrees celsius.
Answers: 2
Chemistry, 22.06.2019 15:30
Each of the following reactions is allowed to come to equilibrium and then the volume is changed as indicated. predict the effect (shift right, shift left, or no effect) of the indicated volume change. drag the appropriate items to their respective bins.co(g) + h2o(g) < => co2(g) + h2(g) (volume is decreased) pcl3(g) + cl2(g) < => pcl5(g) (volume is increased) caco3(s)< => cao(s) + co2(g) (volume is increased)
Answers: 1
Chemistry, 22.06.2019 20:30
The activation energy for the reaction no2(g)+co2(g)⟶no(g)+co(g) is ea = 300 kj/mol and the change in enthalpy for the reaction is δh = -100 kj/mol . what is the activation energy for the reverse reaction?
Answers: 3
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