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Ludmilka [50]
3 years ago
8

A solid element that is malleable, a good conductor of electricity, and reacts with oxygen is classified as a(1) metal(2) metall

oid(3) noble gas(4) nonmetal
Chemistry
2 answers:
sukhopar [10]3 years ago
6 0
Metalloid is the closest because noble gases are obviously out, nonmetals are terrible conductors, and metals are not malleable 
Leokris [45]3 years ago
3 0

Answer: Option (1) is the correct answer.

Explanation:

Metals are the substances which are malleable and ductile. They are lustrous and are good conductors of heat and electricity.

Metals do react with oxygen and results in the formation of metal oxides.

Thus, we can conclude that a solid element that is malleable, a good conductor of electricity, and reacts with oxygen is classified as a metal.

 

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\\ \sf\longmapsto HC_2H_3O_2

\\ \sf\longmapsto 1u+2(12u)+3(1u)+2(16u)

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\\ \sf\longmapsto 28u+48u

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\\ \sf\longmapsto No\:of\;moles=\dfrac{Given\:Mass}{Molar\:Mass}

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\\ \sf\longmapsto Given\:Mass=0.2\times 76

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2 years ago
If 0.092J of heat causes a 0.267 degree C temperature change, what mass of water is present?
Thepotemich [5.8K]

Answer:

0.082g

Explanation:

The following data were obtained from the question:

Heat (Q) = 0.092J

Change in temperature (ΔT) = 0.267°C

Specific heat capacity (C) of water = 4.184J/g°C

Mass (M) =..?

Thus, the mass of present can be obtained as follow:

Q = MCΔT

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6 0
2 years ago
Calculate the entropy change for the reaction: Fe2O3(s) +3C(s) -&gt; 2Fe(s) + 3CO(g)Entropy data:Fe2O3(s): 90 J/K molC(s): 5.7 J
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Explanation:

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\begin{gathered} \Delta S\text{ = S}_{products}-S_{reactants} \\  \\ \text{       = \lparen3}\times198+2\times27.2)-(3\times5.7+90) \\  \\ \text{       = 541.3J/K.mol} \end{gathered}

Answer:

The correct answer is C.

5 0
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