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Damm [24]
3 years ago
11

A large clump of ice is placed into a saucepan and heated to at least 1000C. Explain the changes that would take place by using

the following terms: physical change, states of matter, compound, solid, liquid, vapor and temperature change."
Chemistry
2 answers:
Mamont248 [21]3 years ago
7 0
By start heating the water so,
1- the physical changes to the water will begin by going through different states of matter such as solid, liquid and gas vapor. 

2- Water is a compound, not an element (H2o).

3- It will change according to the temperature change also:

a- At zero C° it is at a freezing temperature.

b- when it starts to be heated from 0C° to 100 c°, it starts to change from freezing to the liquid state. 

c- At 100C° the water starts to change from liquid to vapor state until it disappears. 

IgorLugansk [536]3 years ago
7 0

Explanation:

When a large clump of ice is heated in a sauce pan at about 1000 degree celsius then the ice will start to melt. As a result, the solid state of water which is ice will change into liquid state.

And when the liquid starts to boil as temperature reaches 100 degree celsius then liquid state will change into vapor state until it disappears.

Since there is only change in state so, it is a physical change. Thus, states of matter will change when there will be change in temperature.

Hence, state of compound H_{2}O will change along with change in temperature.

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How many liters of oxygen gas, at standard temperature and pressure, will react with 25.0 grams of magnesium metal? Show all of
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Balance the following redox equation using the smallest integers possible and select the correct coefficient for the hydrogen su
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Oxidation: MnO_{4}^{-}(aq)\rightarrow Mn^{2+}(aq)

  • Balance O and H in acidic medium: MnO_{4}^{-}(aq)+8H^{+}(aq)\rightarrow Mn^{2+}(aq)+4H_{2}O(l)
  • Balance charge : MnO_{4}^{-}(aq)+8H^{+}(aq)+5e^{-}\rightarrow Mn^{2+}(aq)+4H_{2}O(l) .............(1)

Reduction: HSO_{3}^{-}\rightarrow SO_{4}^{2-}

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  • Balance charge : HSO_{3}^{-}(aq)+H_{2}O(l)-2e^{-}\rightarrow SO_{4}^{2-}(aq)+3H^{+}(aq) ..............(2)

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Balanced equation: 2MnO_{4}^{-}(aq)+5HSO_{3}^{-}(aq)+H^{+}(aq)\rightarrow 2Mn^{2+}(aq)+5SO_{4}^{2-}(aq)+3H_{2}O(l)

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