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bazaltina [42]
3 years ago
8

Why is it important to control all of the variables except one in an experiment?

Chemistry
2 answers:
Ad libitum [116K]3 years ago
5 0
Any given experiment has numerous control variables, and it's important for a scientist to try to hold all variables constant except for the independent variable. If a control variable changes during an experiment, it may invalidate the correlation between the dependent and independent variables.



It’s copied and pasted from google so make sure to put it in your words :)

Alborosie3 years ago
5 0
So you can tell exactly which variable caused the reaction.
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What changes are observed on heat capacity ratio and output temperatures by increasing the specific heat capacity of both the fl
BlackZzzverrR [31]

Answer:

b- The heat capacity ratio increases but output temperature don’t change

Explanation:

The heat capacity is the amount of energy required to raise the temperature of a body, by 1 degree. On the other hand, the specific heat capacity is the amount of heat required to raise the temperature of a of unit mass of a material by 1 degree.

Heat capacity is an extensive property meaning its value depends on the amount of material. Specific heat capacity is found by dividing heat capacity by the mass of the sample, thus making it independent of the amount (intensive property). So if the specific heat capacity increases and the mass of the sample remains the same, the heat capacity must increase too. Because of that options c and d that say that heat capacity reamins same are INCORRECT.

On the other hand, in which has to be with options a and b both say that the heat capacity increases which is correct, but about the output temperatures what happens is that if we increase the specific heat capacity of both fluids that are involved in a process of heat exchange in the same value, the value of the output temperatures do not change so only option a is CORRECT.

8 0
3 years ago
What is the mass of 13 gold atoms?
Ludmilka [50]

Answer:

uuuh 4.25191 × 10-21 grams????

Explanation:

8 0
3 years ago
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Fed [463]
"if it is tested in a controlled setting with repeated results" is the statement among the choices given in the question that best describes that can possibly make this scientific claim valid. The correct option among all the options that are given in the question is the first option or option "A". I hope the answer has helped you.<span>
</span>
4 0
3 years ago
Read 2 more answers
Sodium (Na) has 11 protons and 12 neutrons. What is its isotope notation?
DedPeter [7]

Answer:

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7 0
3 years ago
What two general products do combustion reactions create? *
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It would be carbon dioxide and water.

hope this helps you
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