Chemistry
Chemistry, 18.10.2019 06:50, anjah

What is true about the relationship of dna and genes?

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Chemistry, 21.06.2019 22:00, angie249
What is the % yield of nh, if 40.5 g nh is produced from 20.0 mol h, and excess n, 2?
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Chemistry, 22.06.2019 05:50, carog24
Astudent made a graph plotting the progress of a reaction over time. the student forgot to label the y-axis of the graph. a graph is shown with two graph lines. one graph line starts at a higher position on the y axis and slopes downwards towards the right. the other graph line starts at a lower position on the y axis and slopes upwards towards the right. the two graph lines stop short of intersecting each other and continue as separate lines which gradually become straight and parallel to the x axis. a vertical line is shown at a point where the two graph lines finally became parallel to the x axis. this vertical line is labeled equilibrium. the title on the x axis is time and an arrow pointing towards the right is shown above time. the title on the y axis is left blank. what best explains the label that the student should use on the y-axis? amount, because as the amount of product decreases, the amount of reactant increases over time. reaction rate, because forward and backward reaction become equal at equilibrium. amount, because the amounts of reactants and products become constant after equilibrium is reached. reaction rate, as the rate of forward reaction increases and rate of backward reaction decreases over time.
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Chemistry, 22.06.2019 06:00, mckeeshallea400
In the following reaction, oxygen is the excess reactant. sicl4 + o2 → sio2 + cl2 the table shows an experimental record for the above reaction. experimental record trial starting amount of sicl4 starting amount of o2 actual yield of sio2 1 150 g 200 g 49.2 g 2 75 g 50 g 25.2 g calculate the percentage yield for sio2 for trial 1. also, determine the leftover reactant for the trial. show your work. based on the percentage yield in trial 2, explain what ratio of reactants is more efficient for the given reaction.
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Chemistry, 22.06.2019 09:00, krystalhurst97
How are isotopes of the same chemical element alike? how are they different?
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