Chemistry, 04.01.2020 06:31, Nowellkwaku
Agroup of students designed an experiment with a thread and a rubber stopper. the steps of the experiment are listed below. 1. tie a rubber stopper to one end of a 20 cm long thread. 2. hold the other end of the thread and whirl it in a circle five times. 3. allow the thread to wind up on the finger. 4. observe that the rubber stopper moves faster as it comes nearer to the finger. the experiment most likely demonstrates (2 points) question 5 options: 1) kepler's first law of planetary motion 2) kepler's second law of planetary motion 3) newton's second law of motion 4) newton's third law of motion
Answers: 3
Chemistry, 22.06.2019 14:40, sugardime
Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate β enzyme-substrate complex (b) enzyme + substrate βββ enzyme + products (c) enzyme + substrate βββ enzyme-substrate complex β enzyme + products (d) enzyme + substrate βββ enzyme-substrate complex β enzyme-substrate complex + products
Answers: 2
Chemistry, 22.06.2019 20:20, catchonyet
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) β> 2h20(0) + 2502(9) 4fes2+1102 β> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
Answers: 1
Chemistry, 23.06.2019 01:00, daniel1480
Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
Answers: 2
Chemistry, 23.06.2019 01:30, oliviacolaizzi
What happens to the concentration of hydronium ions as the ph of a solution increases? a. hydronium ion concentration stays the same b. hydronium ion concentration decreases c. hydronium ion concentration increases
Answers: 1
Agroup of students designed an experiment with a thread and a rubber stopper. the steps of the exper...
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