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scoray [572]
3 years ago
13

Read the list of substances. Wood, Copper, Iron, Foam Which substances are good conductors of heat?

Chemistry
2 answers:
PtichkaEL [24]3 years ago
8 0

Answer: Option (B) is the correct answer.

Explanation:

Good conductors are defined as the substance through which heat can effectively pass.

For example, copper, and iron are good conductors of heat and electricity.

Generally, metals are good conductors of heat as well as electricity.

On the other hand, bad conductors are the substances through which heat is unable to flow.

For example, glass, wood, foam etc are all bad conductors of heat as well as electricity.

Thus, we can conclude that out of the given options copper and iron are good conductors of heat.

Mashcka [7]3 years ago
5 0

Answer: Option (B) is the correct answer.

Explanation:

Metals are the substances that have more number of electrons. Metals are good conductors of heat and electricity.

For example, iron, copper, zinc are all metals and good conductors of heat and electricity.

Whereas wood and foam are is a poor conductor of heat and electricity.

Thus, we can conclude that out of the given options copper and iron are good conductors of heat.

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Balance the following skeleton reaction and identify the oxidizing and reducing agents: H2S(g) + NO3 ----&gt;’ S8(s) + NO(g) [ac
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Answer : Oxidizing agent is NO^-_3 and Reducing agent is H_2S

Explanation :

The given unbalanced redox reaction is,

H_2S(g)+NO^-_3(aq)\rightarrow S_8(s)+NO(g)

In acidic medium, the balanced redox reaction is,

24H_2S(g)+6NO^-_3(aq)16H^+(aq)\rightarrow 3S_8(s)+16NO(g)32H_2O(l)

Oxidizing agent : Oxidizing agents are those agent which oxidizes other substance and itself get reduced.

Reducing agent : Reducing agents are those agent which reduces other substance and itself get oxidized.

In this redox reaction, NO^-_3 is an oxidizing agent and H_2S is a reducing agent.

The redox reaction is also shown below.


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