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emmasim [6.3K]
3 years ago
6

Describe why it is important that scientific experiments be repeated

Chemistry
1 answer:
defon3 years ago
5 0

Answer:

Scientific experiments need to be repeated so that scientists can make sure the results are as accurate as possible.

Explanation:

The point of a scientific experiment is to find the answer to a question. If a scientist performs an experiment only one time, they might find an answer to their question. However, they might have messed something up, so the answer is completely wrong. Doing an experiment momre than once can help a scientist make sure that their answer is correct. I hope this helps!

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Which is the correct complete ionic equation for the reaction of
cricket20 [7]

Answer:

b) 2H+(aq) + 2C1-(aq) + Zn(s) → H2(g) + Zn2+(aq) + 2Cl-(aq)

Explanation:

The equation is given as;

2HCl(aq) + Zn(s) + H2(g) + ZnCl2(aq)

In writing an ionic equation, only the aqueous compounds dissociates into ions. This means HCl and ZnCl2 would dissociate to form ions.

This is given as;

2H+  +  2Cl-  + Zn(s) --> H2(g) + Zn2+  + 2Cl-

The correct option is;

b) 2H+(aq) + 2C1-(aq) + Zn(s) → H2(g) + Zn2+(aq) + 2Cl-(aq)

8 0
3 years ago
What is the mass of one mole of nitrogen atoms?
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28.0

Explanation:

4 0
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An organic compound containing C,H and O only. Has 29.6% O by mass. Its relative .olecular mass is 270. How many Oxygen atoms ar
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Answer:

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Explanation:

i hope this is correct

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If there is two or more reactions yilding one product is another way to identify a synthesis reaction.

For the chemical equation for this synthesis reaction really looks like:

reactant +reactant = product


if im wrong correct me but have a blessed day/night

=)


4 0
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