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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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4. How many milligrams are in 5.25 x 10-13 kg?<br><br> the “-13” is an exponent
rusak2 [61]

5. 25 x 10⁻⁷mg

Explanation:

This is mass conversion from mg to kg;

The kg is a quantity of mass used to measure the amount of matter in a substance.

   Given mass = 5.25 x 10⁻¹³kg

The kilo-  is a prefix that denotes 10³

  therefore;

         1000g = 1kilogram

 the milli-  is a prefix that denotes 10⁻⁻³

       1000mg = 1g

Now that we know this, we can convert:

   5.25 x 10⁻¹³kg  x \frac{1000g}{1kg}  x \frac{1000mg}{1g}   =  5. 25 x 10⁻¹³ x 10⁶mg

      =  5. 25 x 10⁻⁷mg

learn more:

Conversion brainly.com/question/1548911

#learnwithBrainly

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3 years ago
Is poverty a cycle? And how?
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Determine the number of significant figures in 478 cm​
Grace [21]

Answer:

There are 3 significant figures on this one.

3 0
2 years ago
What does surface tension mean?
Volgvan

Surface tension, property of a liquid surface displayed by its acting as if it were a stretched elastic membrane. This phenomenon can be observed in the nearly spherical shape of small drops of liquids and of soap bubbles. Because of this property, certain insects can stand on the surface of water.

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a sample of double-stranded dna contains 42% cytosine. approximately what percent of the nucleotides in this sample will be thym
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Explanation:

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