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Ronch [10]
2 years ago
11

"What is the potential energy relative to the water surface of a diver at the top of a 26 m

Chemistry
1 answer:
Len [333]2 years ago
4 0

Answer:

PE = 8918 J

Explanation:

Formula for potential energy here is;

PE = mgh

Where;

m is mass

g is acceleration due to gravity

h is height

We are given;

m = 35 kg

h = 26 m

Thus;

PE = 35 × 9.8 × 26

PE = 8918 J

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Answer:

38

Explanation:

Symbol: Sr

Atomic mass: 87.62 u

Electrons per shell: 2,8,18,8,2

Atomic number: 38

Electron configuration: [Kr] 5s2

Van der Waals radius: 255 pm

Valence electrons: two

7 0
3 years ago
How do similarities in the bones of humans dolphins and horse and
Andrej [43]
It provides evidence that each organism is related and similar in each way, leading to the conclusion of a common ancestor.<span />
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Compounds formed from only non-metals consist of particles called
sleet_krkn [62]

Answer:

Compounds formed from non-metals consist of molecules.

Explanation:

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5 0
3 years ago
When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find
ryzh [129]
The balanced equation is 
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We know that the mole of Fe₂O₃ is 6, and since the ratio between oxygen and <span>Fe₂O₃ is 3:2, we can see that

3:2 = x:6 (3 oxygen moles can make 2 </span>Fe₂O₃ moles = x oxygen moles can make 6 <span>Fe₂O₃ moles)
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Multiply outside and inside (3*6 , 2*x) and put them on opposing sides of the equation

2*x = 3*6
2x=18
x=9
Therefore 9 moles of oxygen is needed.

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6 0
2 years ago
Read 2 more answers
Formula for Hydrocloric Acid.
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