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vovangra [49]
3 years ago
12

What is a free body diagram? what is it used for?

Chemistry
1 answer:
shepuryov [24]3 years ago
3 0

Answer:

A free body diagram is used to calculate static and dynamic forces acting on an object. In other words, a free body diagram is the starting point to develop a mathematical model to find and calculate various forces acting on a body.

Explanation:

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Write a balanced overall reaction from these unbalanced half-reactions sn and ag
loris [4]
Balance each one by adding electrons to make the charges on both sides the same:

Sn--> Sn2+ + 2 e-
Ag+ + 1 e- --> Ag

Now, you have to have the same number of electrons in the two half-reactions, so multiply the second one by 2 to get:

2 Ag+ + 2 e- --> 2 Ag

Now, just add the two half reactions together, cancelling anything that's the same on both sides:

2 Ag+ + Sn --> Sn2+ + 2 Ag

And you're done.
8 0
3 years ago
What does the skeletal system work with?
pshichka [43]

Answer:Shape

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3 0
3 years ago
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What is the name of the chart that organizes elements in order of chemical properties?
solong [7]
It is called the periodic table
5 0
3 years ago
It is possiblefor an object's weight to change while its mass remains constan?Explain.
Georgia [21]

Answer:

Yes. Weight is the product of mass times gravitational acceleration. So all you have to do is vary the gravitational field and you vary weight.

Explanation:

7 0
3 years ago
What is the molarity of a 2.4-liter solution containing 124 grams of HF?
ioda
Molar mass:

HF = 1 + 19 = 20.0 g/mol

Number of moles :

124 / 20.0 =>  6.2 moles

Volume = 2.4 L

M = n / V

M = 6.2 / 2.4

M = 2.6 M

Answer A

hope this helps!

7 0
3 years ago
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