Chemistry, 17.10.2019 06:50 annette211pdd8v9
Explain the contrbutions of mendeleev for the arrangement of elements in his periodic table
Answers: 3
Chemistry, 22.06.2019 02:10
When 225mg of anthracene, c14h10(s), was burned in a bomb calorimeter the temperature rose by 1.75k. calculate the calorimeter constant. by how much will the temperature rise when 125mg of phenol, c6h5oh(s), is burned in the calorimeter under the same conditions? (δch< (c14h10,s)=â7061 kj molâ1.)
Answers: 3
Chemistry, 23.06.2019 01:20
Use the de broglie's wave equation to find the wavelength of an electron moving at 4.5 Ă 106 m/s. show your work. note: h= plank's constant (6.62607 x 10-34 j s)
Answers: 1
Chemistry, 23.06.2019 01:30
Polar bears give birth and hunt on sea ice. which of the following would polar bears survive during the melting of arctic ice? growing another layer of fur during summer migrate inland to search for different food sources staying put until the ice refreezes sticking to the usual diet of seals
Answers: 1
Chemistry, 23.06.2019 06:00
â˘what conclusions can you make about the relationship between the volume of a gas and its temperature? ⢠what conclusions can you make about the relationship between the volume of a gas and its pressure? ⢠what possible variables have you not accounted for? as you did the procedures, is it possible that the atmospheric pressure may have changed? if it did change over the course of your experiment, then how would your results have been affected?
Answers: 3
Explain the contrbutions of mendeleev for the arrangement of elements in his periodic table...
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