Chemistry, 16.10.2019 03:00 ajatez8813
Achemist is designing an experiment to investigate the effect of temperature on the rate of a chemical change. suggest a suitable hypothesis for the experiment. also, list the dependent, independent, and controlled variables that can exist in such an investigation.
Answers: 3
Chemistry, 22.06.2019 09:00
Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.
Answers: 2
Chemistry, 22.06.2019 19:10
Which statement correctly describes the phosphate ion, ? it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms covalently bonded together, and there is a –3 charge on the phosphorus atom. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge distributed over the entire ion. it is composed of one phosphorus atom and four oxygen atoms ionically bonded together, and there is a –3 charge on the phosphorus atom.
Answers: 3
Chemistry, 23.06.2019 01:30
Which of the following statements is true about energy quantization at the atomic level? electrons in the outermost orbits are the most stable. electrons in all the orbits around the nucleus have the same amount of energy. electrons in the orbit closest to the nucleus have the least amount of energy. electrons absorb or release the same amount of energy independent of the energy levels.
Answers: 1
Chemistry, 23.06.2019 03:00
Abaker touches a pie right after taking it out of the oven. which statement best explains why the pie feels hot?
Answers: 1
Achemist is designing an experiment to investigate the effect of temperature on the rate of a chemic...
Physics, 12.10.2021 08:30
Biology, 12.10.2021 08:30
Computers and Technology, 12.10.2021 08:30
Health, 12.10.2021 08:30
English, 12.10.2021 08:30
English, 12.10.2021 08:30
Chemistry, 12.10.2021 08:30
History, 12.10.2021 08:30
English, 12.10.2021 08:30