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Alexxandr [17]
3 years ago
11

ILL GIVE BRAINLIST!!!!!!

Chemistry
2 answers:
attashe74 [19]3 years ago
7 0

Answer:

the investigation and results are more reliable if the results can be reproduced.

Explanation:

As you may already know, a scientific experiment is a set of procedures performed by a scientist who seeks to find answers to a particular phenomenon or situation. Every experiment, therefore, generates a result that seeks to explain a certain thing.

It is common and even recommended that scientists reproduce each other's experiments. This is because if, for example, an experiment done by me results in the same conclusions as an experiment done by you a few years ago, it means that the results of our experiments are credible and that they can be considered as correct and true.

fomenos3 years ago
3 0

d.

hope this helpssss :)

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svet-max [94.6K]

Answer: Air, sea water, and carbonation dissolved in soda are all examples of homogeneous mixtures, or solutions. Hope this helps :)

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3 years ago
The following information is to be used for the next 2 questions. In order to analyze for Mg and Ca, a 24-hour urine sample was
Ainat [17]

Answer:

Explanation:

From the given information:

The concentration of metal ions are:

[Ca^{2+}]= \dfrac{0.003474 \ M \times 20.49 \ mL}{10.0 \ mL}

[Ca^{2+}]=0.007118 \ M

[Mg^2+] = \dfrac{0.003474 \ M\times (26.23  - 20.49 )mL}{10.0 \ mL}

=0.001994 \ M

Mass of Ca²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.001994 \dfrac{mol}{L} \times \dfrac{40.08 \ g}{1 \ mol}

= 0.1598 g

Mass of Ca²⁺ = 159.0 mg

Mass of Mg²⁺ in 2.00 L urine sample is:

= 2.00 L \times 0.007118 \dfrac{mol}{L} \times \dfrac{24.31 \ g}{1 \ mol}

= 0.3461 g

Mass of Mg²⁺ = 346.1 mg

5 0
3 years ago
PLEASE ANSWER CORRECTLY PLEASE
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Molecular motion is a measure of the movement of the molecules in a substance. Molecular motion is substantially different betwe
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