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Anastaziya [24]
4 years ago
6

A lab is done using different metals and the density of the metals are recorded in a data table. What is the independent variabl

e in the lab?
Chemistry
1 answer:
vovikov84 [41]4 years ago
6 0

Answer:   The independent variable is the type of metal being used.

{Note:  The "dependent variable" is the "measured density" that corresponds to each of the metals."}.

___________________________________________

Explanation:

___________________________________________

The "independent variable", which is plotted on the "x-axis" (horizontal axis), is the variable that can be "controlled/manipulated".  In this case, this would be the type of metal chosen.

The "dependent variable" , which is plotted on the "y-axis" (vertical axis) is the "obtained value/measurement/result" (that "cannot be controlled/manipulated").

In this case, the "density", which is the "measured value" that corresponds to the selected "meal", is the "dependent variable".

___________________________________________

Hope this helpful to you!

   Wishing you well!

___________________________________________

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Answer:

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Pairs
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Atoms are made up of protons, neutrons, and electrons.

Energy can be neither created nor destroyed.

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The correct pairing of the given terms are obtained from the given options as follows:

Atoms of elements contains three sub-atomic particles which are protons, neutrons, and electrons.

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Therefore, Water freezes at 0°C.

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In conclusion, the correct pairing gives the correct description of the properties of the given terms.

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3 0
2 years ago
A large cyclotron directs a beam of He++ nuclei onto a target with a beam current of 0.250 mA. (a) How many He++ nuclei per seco
nikitadnepr [17]

Answer:

a. 7.8*10¹⁴ He⁺⁺ nuclei/s

b. 4000s

c. 7.7*10⁸s

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