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RSB [31]
3 years ago
14

What is a Control trial

Chemistry
1 answer:
AleksandrR [38]3 years ago
8 0
It is a trial aimed to reduce bias during an experiment. An example would be a sugar pill, something that has no real effect so that the results of the true trial can accurately be compared. Its like a control group.
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galben [10]

Answer:

A cloudy appearance!!

Explanation:

Hope it helps, just took a quiz.

3 0
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23g of sodium reacted with 35.5g of chlorine. Calculate the mass of the sodium chloride compound formed.
uysha [10]
58.5 is the final mass of the compound as long as any gases the reaction causes to be
7 0
3 years ago
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in the reaction 3H2+N2--> NH3,what coefficient should be placed in front of NH3 to balance the reaction?
VikaD [51]
The best way to solve this is to list all the elements out and count them.

Count subscripts first (if there is no subscript then there is 1 atom)
Then multiply by the coefficients
To balance write a coefficient and multiply

<span>3H2+N2--> NH3

H 2 x 3 = 6                H  3  (x2) = 6
N 2                            N  1  (x2) = 2


Your answer is 2 . . . to balance this equation you will need a coefficient of 2</span>
8 0
3 years ago
Read 2 more answers
Which one? Please help me thank you
Tomtit [17]

the correct answer is option d.

6.67*10-3 hrs

7 0
3 years ago
At STP, 1 mole of gas has a molar volume of 22.4 L. What is the density (g/L) of oxygen at STP?
Bingel [31]
So the GFM of O2 is 32.00g/mol
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