Chemistry, 09.02.2021 18:20 boogerbuttday
29. In an eighth-grade science class, there are four lab groups. Group 4 designs an experiment to find out
how light affects the germination rate of radish seeds. The students in Group 4 write out their procedure and
conduct their experiment. They discover inconsistencies in their data and decide to increase the number of
trials to obtain multiple data sets. Which of these most accurately describes how this should be done?
O Group 4 should repeat their procedure at least three times.
O Group 4 should repeat a revised procedure at least three times.
O Group 4 should communicate their procedure to another group for replication.
O Group 4 should communicate a revised procedure to another group for replication.
Answers: 2
Chemistry, 21.06.2019 17:00
What is the nature of the ca-cl bond in a molecule of calcium chloride (cacl2) if the electronegativity value of calcium is 1.0 and that of chlorine is 3.16?
Answers: 1
Chemistry, 22.06.2019 01:30
If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)
Answers: 3
Chemistry, 22.06.2019 06:00
24. a sports ball is inflated to an internal pressure of 1.85 atm at room temperature (25 °c). if the ball is then played with outside where the temperature is 7.5 °c, what will be the new pressure of the ball? assume the ball does not change in volume nor does any air leak from the ball a) 0.555 atm b) 1.74 atm c) 1.85 atm d) 1.97 atm
Answers: 2
Chemistry, 22.06.2019 23:40
What energy conversion occurs when a sling shot is used to shoot a rock across the room? (2 points) question 2 options: 1) stored mechanical energy is converted to mechanical energy. 2) stored mechanical energy is converted to radiant energy. 3) gravitational energy is converted to radiant energy. 4) gravitational energy is converted to mechanical energy.
Answers: 1
29. In an eighth-grade science class, there are four lab groups. Group 4 designs an experiment to fi...
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