3 years ago

Is an oreo a pure substance or a mixture and why?

Chemistry

1 answer:

pav-90 [236]3 years ago

7 0

Pure oreo would be a mixture

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What is the molecularity of the following elementary reaction?

Pani-rosa [81]

Answer : The correct option is, (B) bimolecular

Explanation :

Molecularity : It is defined as the total number of reactant molecules taking part in the balanced equation of a reaction. It is a theoretical concept.

The given balanced chemical reaction is,

$NH_2Cl(aq)+OH^-(aq)\rightarrow NHCl^-(aq)+H_2O(l)$

The number of reactants molecules taking part in the balanced equation of a reaction are, $NH_2Cl$ and $OH^-$ .

In this reaction, 1 $NH_2Cl$ molecules reacts with the 1 $OH^-$ molecule.

Total number of reactant molecule = 1 + 1 = 2

The molecularity of the reaction is 2 that means, the elementary reaction is bimolecular.

Hence, the correct option is, (B) bimolecular

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3 years ago

In this equation: FeBr2+K2CO3=Fe2(CO3)2+KBr do I simplify the 2's on iron and the CO3 on the "right side" before continuing or k

svetlana [45]

Yes simplify. Anybody educated in chemistry can look at the equation and see that you have Fe+2 and CO3-2 combined to make FeCO3. But you don't need the 2s. Always simplify the subscripts.

By the way, the equation is not fully balanced. Check KBr.

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3 years ago

Which of the following properties of silver does not explain why this metal is often used in jewelry?

Daniel [21]

C
The high conductivity of silver does not promote its use in jewelry.

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Which element is a noble gas?<br> A. W<br> B. Ar<br> C. N<br> D. Er

inessss [21]

His the answer I hope it helps

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A reddish-orange element used for electrical wiring

dsp73

Copper is the answer to ur question

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