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ExtremeBDS [4]
3 years ago
14

Gravitational, elastic, and chemical are three forms of

Chemistry
2 answers:
mafiozo [28]3 years ago
8 0

The correct answer is potential energy.

Potential energy is when an object can store energy as the result of its position.

Gravitational potential energy is the energy stored between an object and the Earth.

Elastic potential energy is the energy stored in objects that are compressed or stretched.

Chemical potential energy is the energy stored in the bonds between atoms.

never [62]3 years ago
4 0
Gravitational, elastic, and chemical are three forms of potential energy.
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14. What volume (mL) of water do I need to add to 425
Reptile [31]

Answer:

212.5 mL

both the original and the diluted solution have 0.765 moles of KCl

Explanation:

c1V1 = c2V2

V2 = c1V1/c2 = (1.8 M×425 mL)/1.2 M = 637.5 mL

(637.5 - 425) mL = 212.5 mL

n = (1.8 mol/L)(0.425 L) = 0.765 moles of KCl

since it's a dilution, the diluted solution has the same number of moles as the original solution, 0.765 moles of KCl

7 0
3 years ago
I'm afraid I won't pass. And very nervous. Can you help me please.
daser333 [38]
Just look at the number in front also called coefficient (you have to balance the equations first, but all the questions here are balanced, so no worries). for q1.
in the balanced equation, the number in front of aluminum oxide is 2 (2 - this number Al2O3) and for aluminium is 4 as in (4 Al). so the ratio is 2:4. simplified it is 1:2. or write it out fully
2 Al2O3: 4 Al
ignore everything after the number.
2:4
same as 1:2
Aluminium oxide to oxygen
2 Al2O3: 3 O2
2:3
aluminum to oxygen
4 Al: 3 O2
4:3

question 2
Mercury oxide to Mercury
2 HgO : 2 Hg
2:2
same as 1:1
Mercury oxide to oxygen
2 HgO : O2
since oxygen in this case does not have a number written in front of it, the default is 1.
2: 1.
you should be able to do the rest
4 0
3 years ago
What is the chemical formula for iodine gas?​
DanielleElmas [232]

Answer:

I2

hope this helps

3 0
2 years ago
Read 2 more answers
10/24/14
vlabodo [156]

Answer:

d = Hydrogen and oxygen are being formed.

Explanation:

When current is passed through the water electrolysis take place.

Water is splitted into hydrogen and oxygen gas. Because of this formation bubbles are formed.

At cathode:

2H₂O + 2e⁻  → H₂ + 2OH⁻

Cathode is negatively charged and reduction take place on it.

At anode:

4OH⁻ → O₂ + 2H₂O + 4e⁻

Anode is positively charged and oxidation take place on it.

The over all reaction can be written as:

Chemical equation:

2H₂O  (electricity) →  2H₂  +  O₂

3 0
3 years ago
Read 2 more answers
What is meant by a “ chain reaction “ ?
lilavasa [31]

Answer:

a chemical reaction or other process in which the products themselves promote or spread the reaction, which under certain conditions may accelerate dramatically.

Explanation:

the self-sustaining fission reaction spread by neutrons which occurs in nuclear reactors and bombs.

a series of events, each caused by the previous one.

5 0
2 years ago
Read 2 more answers
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