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LUCKY_DIMON [66]
2 years ago
13

Hydrogen gas reacts rapidly with oxygen gas in the presence of a platinum catalyst. Which equation correctly represents this

Chemistry
2 answers:
ivanzaharov [21]2 years ago
7 0

Answer:

2H2(g) + O2(g) -pt---> 2H2O

tatuchka [14]2 years ago
6 0

Answer:

2H2(g) + O2(g) ------------------> 2H2O(g)

Explanation:

Basically, the reaction of hydrogen and oxygen is a type of combination reaction and forms steam as its end product. The pure hydrogen burns with a blue flame with oxygen. Industrially, where the combination of hydrogen and oxygen is needed to undergo rapidly, platinum catalyst is introduced. This reaction gives steam rapidly. Platinum speeds up the rate of the reaction of hydrogen and oxygen gases.

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Given the equation 4Al +3O2 --> 2Al2O3 if 325 grams of Al2O3 are to be formed, determine the mass of aluminum that must be re
den301095 [7]

Answer:

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Step-by-step explanation:

We know we will need a balanced equation with masses and molar masses, so let’s <em>gather all the information</em> in one place.  

M_r:   26.98                101.96

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m/g:                               325

(a) Calculate the <em>moles of Al₂O₃ </em>

n = 325 g Al₂O₃ × 1 mol Al₂O₃ /39.10 g Al₂O₃

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(b) Calculate the <em>moles of Al </em>

The molar ratio is (4 mol Al/2 mol Al₂O₃)

n = 3.188 mol Al₂O₃ × (4 mol Al/2 mol Al₂O₃)

n = 6.375 mol Al

(c) Calculate the <em>mass of Al</em>

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Note: The answer can have only <em>three</em> significant figures because that is all you gave for the mass of Al₂O₃.

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We may use the molecular formula of the compound to determine the number of oxygen atoms in one formula unit. The formula unit is:
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5 0
3 years ago
Read 2 more answers
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