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snow_lady [41]
3 years ago
8

What does variable mean in a science project.

Chemistry
2 answers:
Arte-miy333 [17]3 years ago
7 0
Variable is any factor, trait, or condition that can exist in differing amounts or type. experiments usually have three kids of variables: independent, <span>dependent, and controlled. independent variable is the one that gets changed by the scientist. i hope this helps alot</span>
Paul [167]3 years ago
6 0
Well, an independent variable ids the thing that  stays the same and a dependent variable is the thing that changes.

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Which element does not have the same number of electrons in its outermost shell as the other elements in its group?(1 point)
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3 years ago
Cu + 2AgNO3 es002-1.jpg 2Ag + Cu(NO3)2 How many moles of copper must react to form 0.854 mol Ag?
marin [14]
Balance Chemical Equation is as follow,

<span>                        Cu + 2 AgNO</span>₃     →    2 Ag + Cu(NO₃)₂

According to Balance Equation,

                   2 Moles of Ag is produced by reacting  =  1 Mole of Cu
So, 
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Solving for X,
                             X  =  (0.854 mol × 1 mol) ÷ 2 mol

                             X  =  0.427 Moles of Cu
Result:
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4 0
3 years ago
Which option(s) correctly shows an anion? Select all that apply. ​
nata0808 [166]

Answer:

x

Explanation:

becaue neutron equal to mass num -atomic num

7 0
3 years ago
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