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Naily [24]
1 year ago
15

How many particles are in 2.5 mol of water, H2O?

Chemistry
2 answers:
scZoUnD [109]1 year ago
8 0
There are 1.5x1024 molecules
LUCKY_DIMON [66]1 year ago
3 0

Answer: 1.5×1024 molecules

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What changes occur at the molecular level when ice cream melts and forms a liquid?
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When ice cream melts from solid to liquid, the motion of the molecules increases. This is because as the phase change moves from solid to liquid to gas, entropy increases which increases the probability of the molecules to collide and move in the system. This increase may be because of the increase in temp, probable cause of the melting of icecream.
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2 years ago
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22. What is a comet?
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A ball of ice blasted into outer space

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2 years ago
Which gas law (choices are Charles' Law, Gay-Lussac's Law, or Boyle's Law) explains each scenario:________.
posledela

Answer:

A.  Boyle's Law

B.  Charles' Law

C. Gay-Lussac's Law

Explanation:

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Helium balloon decrease in sice in a freezer is an example of Charlles law which states that the volume of a given mass of gas is nverslely proportionl to its temperature at constant pressure

A can of spray paint will explode if tossed into a fire is an example of Gay-Lussac's Law which states that the pressure of a given mass of gas is directly proportional to its temperature hence the increased pressure causes the can ti explode

4 0
2 years ago
Draw a schematic diagram of a circuit with an output device, a energy source and a controller.
mart [117]

Answer:

ch∪pαpi munαn0?

Explanation:

8 0
2 years ago
What is the concentration of Htions at a pH = 11?
Lostsunrise [7]
Answer:
a) 1 x 10^-11 mol/L
b) 1 x 10^-6 mol/L
c) 1 x 10^-5 fewer H+ ions

Explanation

pH stands for Power of Hydrogen, the more acidic a substance is, the more H+ ions it has rendering the substance acidic. a pH of 1 means the concentration of H+ ions is 1 x 10^-1. A pH of 7 means the concentration of H+ ions is 1 x 10^-7 and so on.

10^-11 has 10^-5 more H+ ions than 10^-6

Hope this helps :)
5 0
3 years ago
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