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Nookie1986 [14]
3 years ago
6

Which of the following lists the elements in order of increasing malleability

Chemistry
2 answers:
dsp733 years ago
8 0

Answer:

The list the elements in order of increasing malleability would be: Se, Sb, Sn.

Explanation:

Since, Se = nonmetal, Sb = metalloid, Sn= metal  

I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!

dimulka [17.4K]3 years ago
3 0

a...if you had the fully extended periodic table, these elements would be between La and Hf in period 6 and Ac and Rf in period 7

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The heat of reaction (i.e. combustion) of butane (C_{4} H_{10}) when reacted with oxygen (O_{2})  is -2658 kJ/mol butane, and the chemical reaction is given by: 

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The mass of butane required in the reaction is based on the heat produced by the reaction, which is given to be -1,500 kJ. The minus sign is added because the reaction releases heat (exothermic), which means that the products are in a "lower energy state" than the reactants. 

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Mass of butane  = 0.5643 moles butane * 58 grams/mol butane
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The mass of carbon dioxide (CO_{2}) can be determined by multiplying the moles of butane (C_{4} H_{10}) with the mole ratio of (CO_{2}) produced to the (C_{4} H_{10}) reacted, and then with the molar mass of (CO_{2}), which is 44 grams/mole. 

Mass of carbon dioxide produced 
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Mass of carbon dioxide produced  
    = 99.32 grams CO_{2}

Thus, the mass of butane required is 32.73 grams, and the mass of carbon dioxide produced from the reaction of this amount of butane is 99.32 grams. 
                
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