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Georgia [21]
3 years ago
10

Please...help!

Chemistry
1 answer:
makkiz [27]3 years ago
7 0
The atomic density cuases them to be different u can measure the weight mass density # 28 was cut off picture by the way
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Question 5
pantera1 [17]

Answer: The coefficient for the diatomic oxygen (O2) is 3.

Explanation:

To know the coefficient for the diatomic Oxygen, we need to balance the equation.

Fe + O2 ------->   Fe2O3

LHS of the equation; Fe =  1    , O2 = 1

RHS of the equation; Fe = 2 ,  O = 3

∴ Multiply 'Fe' on the LHS of the equation by 4 and O2 by 3

   Doing that will give the balance equation which is;

   4 Fe +  3 O2  --------> 2 Fe2O3

The coefficient for the diatomic oxygen (O2) as seen from the equation is 3.

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3 years ago
Suppose you are helping mccarthy choose her sample sites. you have the resources to conduct the study at only 4 sites. pick the
VARVARA [1.3K]

I dont know the answer

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Why does solid change to liquid when heat is added
Sophie [7]
Because that solid is frozen liquid, so when it gets heated up, it will melt. Like Ice.

Hope I Helped! :)
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3 years ago
Which factor affects a solute's solubility rather than its rate of solution?
Illusion [34]

Answer: A

Explanation:

I took the test it was A

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If the strength of the magnetic field at B is 10 units, the strength of the magnetic field at A is _____.
Sergeeva-Olga [200]
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