Chemistry, 21.10.2020 06:01 jazminpagan15
A car is moving at a constant speed along a straight line. Which statement is true about the forces acting on the can
Ο Α. The net force acting on the car from all directions is zero.
B. The net force acting on the car is greater than the car's weight.
C. The net force acting on the car is in the direction of the car's motion
OD. The net force acting on the car is in the opposite direction of the car's motion,
Answers: 1
Chemistry, 21.06.2019 18:20, ineedhelp773
Which statement accurately describes the relationship between air pressure, air density, or altitude? as altitude increases, pressure increases. as altitude increases, air density increases. air pressure and density are lowest at sea level. denser air exerts more pressure than less dense air.
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
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Chemistry, 22.06.2019 06:30, khalaflaf2684
If 1.8 l of water is added to 2.5l of a 7.0 m koh solution, what is the molarity of the new solution
Answers: 1
Chemistry, 22.06.2019 13:00, nadikadiaz1
These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.
Answers: 1
A car is moving at a constant speed along a straight line. Which statement is true about the forces...
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