Answer:
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Explanation:
double blind test. the control group receives a placebo. Why is a placebo used in a double-blind test? so that the effects on people in two different groups can be compared.
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The Geometry of PF₃Cl₂ is drawn below. The Fluoride atoms are at
Equatorial position while Chlorine atoms are at
Axial position. This overall geometry is called as
Trigonal Bipyrimidal. The
bond angles are as follow,
F--P--F =
120° Cl--P--Cl =
180° F--P--Cl =
90°
C because it’s just leaning against the wall it’s not moving
Answer:
a) 65.74 ± 0.01
b) 60.009 ± 0.001
c) 66 ± 1
d) 65.750 ± 0.001
Explanation:
When reporting results, scientist usually specify a range of values that they expect this "true value" to fall within. The most common way to show this range of values is: measurement = best estimate ± uncertainty
Uncertainties are almost always quoted to one significant digit (example: ±0.05 s).
Wrong: 34.3 cm ± 4.3 cm
Correct: 34 cm ± 4 cm
Always round the experimental measurement or result to the same decimal place as the uncertainty.
Wrong: 1.237 s ± 0.1 s
Correct: 1.2 s ± 0.1 s
Therefore for to answer the question:
a) 65.74 ± 0.01
b) 60.009 ± 0.001
c) 66 ± 1
d) 65.750 ± 0.001
I hope you find this information useful and interesting! Good luck!
For the answer to the question above asking w<span>hich of the following would likely form a heterogeneous mixture?
The answer would be</span> <span>sand and water
other choices like
,baking soda salt and sugar are soluble in water and form homogeneous solution</span>
