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Mazyrski [523]
3 years ago
11

Which subctant will not conduct electricity a Aluminium b copper c plastic d steel​

Chemistry
2 answers:
jolli1 [7]3 years ago
4 0

Answer:

plastic

Explanation:

yuradex [85]3 years ago
3 0

plastic doesn't conduct electricity

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Limestone stalactites and stalagmites are formed in caves by the following reaction: Ca2 (aq) 2HCO−3(aq)→CaCO3(s) CO2(g) H2O(l)
Vesna [10]

Answer : The value of \Delta E for this reaction is 36.18 kJ

Explanation :

First law of thermodynamic : It states that the energy can not be created or destroyed, it can only change or transfer from one state to another state.

As per first law of thermodynamic,

\Delta E=q+w

where,

\Delta E = internal energy  of the system

q = heat added or rejected by the system

w = work done

As we are given that:

q = 38.65 kJ

w = -2.47 kJ (system work done on surrounding)

Now put all the given values in the above expression, we get:

\Delta E=38.65kJ+(-2.47kJ)

\Delta E=36.18kJ

Therefore, the value of \Delta E for this reaction is 36.18 kJ

6 0
2 years ago
Sulphuric acid is a strong acid but acetic acid is weak acid why​
Lemur [1.5K]

Answer:

sulphuric is a strong acid

Explanation:

Sulphuric is a strong acid because it completely ionises in water while acetic acid partially ionises in water

8 0
3 years ago
You are given a cup of milk and a spoon of sugar. What type of mixture will be formed? justify your answer.​
IrinaK [193]
Milk that’s really sweet? or clumpy milk?
6 0
3 years ago
Select all that apply.
cupoosta [38]

Answer:

B and C

Explanation:

I think the answer correct is C because you never know in what temperature the block of ice is going to melt but if it says select all that apply its possible that B might be useful.

7 0
2 years ago
Guys, please, please help!!
shutvik [7]
Ookay 

1) T 
2) T
3) F

Hope i helped :)

6 0
3 years ago
Read 2 more answers
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