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aivan3 [116]
4 years ago
7

which object would have more potential energy a bowling ball stored on a high shelf in a closet or a baseball on the same shelf?

why? which one would you rather fall on your head
Chemistry
1 answer:
AveGali [126]4 years ago
4 0

Explanation:

Potential energy mathematically is P = m×g×h.

Where m= mass of the ball, g= acceleration. due to gravity which is constant

and h= the height which is also same.

Since, a bowling ball has more mass than a baseball, therefore, its potential energy would be higher generally.

A baseball is more likely to fall on your head because of its round shape.

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For the reaction
Pepsi [2]

Answer:

Mass of Na₂CrO₄ =  5.75 g

Explanation:

First of all we will write the balance chemical equation.

2AgNO₃ + Na₂CrO₄     →    Ag₂CrO₄  +  2NaNO₃

Now we will calculate the moles of AgNO₃.

Number of moles = mass / molar mass

Molar mass of AgNO₃ = 107.87 + 14 + 3× 16 =  169.87 g/mol

Number of moles = mass / molar mass

Number of moles = 12.1 g / 169.87 g/mol = 0.071 mol

Now we will compare the moles of AgNO₃ and  Na₂CrO₄ from balance chemical equation.

                        AgNO₃    :     Na₂CrO₄

                          2            :           1

                          0.071     :           1/2× 0.071 = 0.0355

Now we will calculate the mass of Na₂CrO₄.

Molar mass of Na₂CrO₄ = 23×2 + 52 + 16×4 = 162 g/mol

Mass of Na₂CrO₄ = number of moles  ×  molar mass

Mass of Na₂CrO₄ =  0.0355 mol ×  162 g/mol

Mass of Na₂CrO₄ =  5.75 g

3 0
3 years ago
Hey everyone edge.nuity is having an outage wanna talk ;)
sergejj [24]

Answer:

What's that??

Explanation:

Btw thanks for the points!! lol

5 0
3 years ago
How are covalent network solid similar to ionic solids?
olasank [31]

Ionic solids have high melting points and are rather hard. ... Covalent solids comprise two- or three-dimensional networks of atoms held together by covalent bonds; they tend to be very hard and have high melting points

7 0
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At what point will the heat flow stop?
Sloan [31]

Answer: When you put a hot object in contact with a cold one it heat will flow from the warmer to the cooler. and as a result the warmer one will be usually cool down and the cooler one will usually warm up. Eventually, they will reach the same temperature and heat flow will stop.

Explanation: Hope this helps

6 0
3 years ago
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The cell membrane. The cell membrane controls what will leave and enter the cell, not only that but it also helps support and protect the cell.
5 0
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