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slavikrds [6]
4 years ago
15

Under which conditions of temperature and

Chemistry
2 answers:
SCORPION-xisa [38]4 years ago
7 0
(3) <span>347 K and 1 atm is the correct one because a real gas behaves most like an ideal gas at high temperature and low pressure.</span>
ArbitrLikvidat [17]4 years ago
4 0
Real gases deviate from the ideal gas law under instances of high pressure and low temperature when the molecules are close enough for IMFs to take over so the answer is 3 

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Which coefficients correctly balance the formula equation cao + h2o ® ca(oh)2?
djverab [1.8K]
CaO + H2O → Ca(OH)2

the number of O atom on the left side is 1 and on the right side 2 so,

we put 2H2O instead of H2O 

CaO + 2H2O → Ca(OH)2 

now we have to put 2Ca(OH)2 instead of Ca(OH)2 to make H atoms equal on both sides 4

CaO + 2H2O → 2Ca(OH)2

now we have to put 2CaO instead of CaO to make Ca atoms equal on both sides 2 atoms.

∴ the final balanced equation is:

2CaO + 2H2O → 2 Ca(OH)2

∴ the coefficients are 2 2 2

 
7 0
3 years ago
Explain how the periodic table is arranged and why it is a helpful tool in our study of chemistry. Write in complete sentences a
frosja888 [35]
The periodic table is grouped by the properties of each element. They are also arranged in the order of their atomic mass.  Different rows of elements are called periods. If elements lie in the same column, they are in the same group. It is helpful to us today because it helps us gain new information on the properties and the world around us. We would not have a true understanding of Chemistry if it were not for the period table.

3 0
4 years ago
What are two main groups of forces
Anuta_ua [19.1K]

Answer:

There are 2 types of forces, contact forces and act at a distance force. Every day you are using forces. Force is basically push and pull. When you push and pull you are applying a force to an object.

Explanation:

3 0
3 years ago
Iron reacts with oxygen gas to produce iron (III) oxide. If there are 52 grams of
IRISSAK [1]

Mass of Fe₂O₃ : 74.26 g

Volume of O₂ at STP = 15.624 L

<h3>Further explanation</h3>

Reaction

4Fe (s) + 3O₂ (g) ==> 2Fe₂O₃ (s)

mol Fe :

Ar Fe = 56 g/mol

\tt \dfrac{52}{56}=0.93

mol Fe₂O₃ :

\tt \dfrac{2}{4}\times 0.93=0.465

mass Fe₂O₃ :

MW Fe₂O₃ : 159,69 g/mol

\tt 0.465\times 159,69=74.26~g

mol O₂ :

\tt \dfrac{3}{4}\times 0.93=0.6975

volume O₂ at STP(1 mol=22.4 L)

\tt 0.6975\times 22.4=15.624~L

7 0
3 years ago
M + e - M-1<br>Is M oxidized or reduced?​
bazaltina [42]

Answer:

Reduced  

Explanation:

M + e⁻ ⟶ M⁻

Reduction is the gain of an electron.

3 0
3 years ago
Read 2 more answers
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