Chemistry, 10.10.2019 01:30 davelopez979
In the following reaction, 451.4g of lead reacts with excess oxygen forming 356.7g of lead (ii) oxide. calculate the percent yield of the reaction. 2pb(s)+o2(g)= 2pbo(s)
Answers: 3
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Significant figures are digits read directly from the measuring instrument plus one more digit, which is __ by the observer.
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Chemistry, 22.06.2019 12:00
1. if you have a gas at 127 degrees c, what is it's absolute temperature (kelvin)? a. 200kb. 300kc. 400kd. 500k2. if you had a gas whose absolute temperature measured 45 k, what is that temperature in celsius? a. -228 cb. -300 cc. 125 cd. 112 c
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Chemistry, 22.06.2019 18:30
The famous scientist galileo galilei did several experiments with sloping planes, which he rolled metal balls down so that he could study motion. by changing the slope, he could study how the speed at which the ball rolled was affected. what was the independent variable in galileo's experiment? a. the speed of the ball b. the slope of the plane c. whether the ball moved d. what the ball was made of
Answers: 2
In the following reaction, 451.4g of lead reacts with excess oxygen forming 356.7g of lead (ii) oxid...
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