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stealth61 [152]
2 years ago
8

As the atmospheric pressure decreases, the temperature at which water will boil

Chemistry
1 answer:
spin [16.1K]2 years ago
4 0
As the atmospheric pressure decreases, the temperature at which water boils decreases too. An increase in pressure leads to an increase in boiling point while a decrease in pressure leads to a decrease in boiling point.
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False,
machines constantly mess up
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Iron is obtained commercially by the reaction of hematite (Fe2O3) with carbon monoxide. How many grams of iron are produced if 1
kherson [118]
 <span>CO is the limiting reactant 
( 25.0 x 3 = 75 moles of CO are required) 

Moles Fe = 30.0 x 2 / 3 = 20.0 
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I'm just saying</span>
5 0
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The change in velocity over a specific amount of time Includes speeding up. slowing down or changing direction. This is known as
Nana76 [90]

Answer:

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3 0
2 years ago
Iron and oxygen form rust. How many moles of rust should be produced if 1
kakasveta [241]

Answer:

1.387 moles

Explanation:

Step 1:

The balanced equation for the reaction. This is illustrated below:

4Fe + 3O2 —> 2Fe2O3

Step 2:

Determination of the number of mole of Fe in 155.321g of Fe. This can be achieved by doing the following:

Mass of Fe = 155.321g

Molar Mass of Fe = 56g/mol

Number of mole of Fe =?

Number of mole = Mass/Molar Mass

Number of mole of Fe = 155.321/56

Number of mole of Fe = 2.774 mol

Step 3:

Determination of the number of mole of rust (Fe2O3) produced. This is illustrated below:

From the balanced equation above,

4 moles of Fe produced 2 moles of Fe2O3.

Therefore, 2.774 moles of Fe will produce = (2.774 x 2)/4 = 1.387 moles of Fe2O3.

Therefore, 1.387 moles of rust (Fe2O3) is produced from the reaction

6 0
3 years ago
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What type of energy changes take place when a candle burns
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The two types of energy changes that occur are heat and light changes.
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