Chemistry, 06.12.2019 10:31, dallisjuhnke
Methods scientist use to determine a change in physical or chemical change in an item
Answers: 2
Chemistry, 21.06.2019 15:00, jujurocks10
If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.
Answers: 1
Chemistry, 21.06.2019 17:30, kev71
You are performing an experiment in a lab to attempt a new method of producing pure elements from compounds. the only problem is that you do not know what element will form. by your previous calculations you know that you will have 6.3 moles of product. when it is complete, you weigh it and determine you have 604.4 grams. what element have you produced?
Answers: 1
Chemistry, 22.06.2019 04:00, nikkih1225
Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity
Answers: 1
Chemistry, 22.06.2019 06:00, palomaresmitchelle
There are 6.022, 104 atoms of hg in 1 mole of hg the number of atoms in 45 moles of hg can be found by multiplying 4.5 by 6.022, 102 which is the number of atoms in 4.5 moles of hg, correctly written in scientific notation with the correct number of significant figures? 0 21,109 0 21,100 271, 1024 27.099, 100 mark this and retum save and exit submit
Answers: 1
Methods scientist use to determine a change in physical or chemical change in an item...
Mathematics, 04.01.2021 14:00
Mathematics, 04.01.2021 14:00
Biology, 04.01.2021 14:00
Mathematics, 04.01.2021 14:00
Chemistry, 04.01.2021 14:00