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Yuri [45]
3 years ago
9

Why is it important to do further investigations to determine if a chemical change really occurred?

Chemistry
1 answer:
KatRina [158]3 years ago
5 0

Answer:

x

Explanation:

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Which of the following is not a reason why actual yield is less than theoretical yield?
Gnom [1K]
Your answer is B, conservation of mass


Recall that percent yield is given by: %Yeild = actual yeild/theoretical yeild x100

During experiments, there are errors made:

• uncertainty in measurements

• losses of reactants and products

• impurity in reactants

• losses during separation (e.g. filtration or purification)

• Some side reactions might also happen.



Among the given options, only conservation of mass does not contribute to a lower actual yield compared to the theoretical yield.

5 0
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natulia [17]

Answer:

The answer should be 1000 kg / m3

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How many significant figures are in 0.0233?
viva [34]

Answer:

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Explanation:

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4 years ago
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lys-0071 [83]

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6 0
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Type of molecule is shown below?<br> H<br> O=C<br> H
ololo11 [35]

Answer:

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While the diagram is slightly unclear, the molecule most likely being shown is a carbonyl. A molecule is a carbonyl when there is a carbon double-bonded to an oxygen.

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