Chemistry, 15.10.2019 00:40 drzewostan5716
If your lawn is 21.0 ft wide and 20.0 ft long, and each square foot of lawn accumulates 1350 new snow flakes every minute. how much snow (in kilograms) accumulates on your lawn per hour? assume an average snow flake has a mass of 1.60 mg.
Answers: 3
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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At a certain temperature the rate of this reaction is first order in hi with a rate constant of : 0.0632s2hig=h2g+i2g suppose a vessel contains hi at a concentration of 1.28m . calculate how long it takes for the concentration of hi to decrease to 17.0% of its initial value. you may assume no other reaction is important. round your answer to 2 significant digits.
Answers: 1
If your lawn is 21.0 ft wide and 20.0 ft long, and each square foot of lawn accumulates 1350 new sno...
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