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lisov135 [29]
4 years ago
9

This is a picture of a common mineral, nickel. Imagine that you found this mineral, which is also a metal, but you did not know

what it was? What physical property could you use to identify the mineral, no matter how big a piece you found? A) color B) density C) mass D) shape
Chemistry
1 answer:
Contact [7]4 years ago
8 0

B) density

Explanation:

The density of nickel would be the best physical property of the mineral to identify it with no matter how big a piece that is found.

Density is an intensive property of any substance that is unique to them. It is not a function of the amount of matter unlike extensive properties that varies with the amount of substance that is present.

  • Density is the amount of substance that is present in a unit volume of it:

 Density = \frac{mass}{volume}

All samples of nickel no matter their size have the same density which is different from those of other metals.

learn more:

Density brainly.com/question/2690299

#learnwithBrainly

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Automobile bodies contain significant amounts of iron. The iron is protected by the addition of zinc. This is called galvanizati
Oksana_A [137]

<u>Answer:</u> The balanced chemical equation is written below.

<u>Explanation:</u>

Galvanization is defined as the process in which a protective layer of zinc is applied to iron or steel to prevent the metal from rusting.

Zinc prevents the oxidation of iron and acts as a reducing agent in the process.

The half reaction for the process follows:

<u>Oxidation half reaction:</u>  Zn\rightarrow Zn^{2+}+2e^-

<u>Reduction half reaction:</u>  Fe^{2+}+2e^-\rightarrow Fe

Net chemical equation:  Zn+Fe^{2+}\rightarrow Zn^{2+}+Fe

Hence, the balanced chemical equation is written above.

6 0
3 years ago
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Drupady [299]

Answer:

Option 2 and 4 are correct

Explanation:

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This is an addition reaction in which two reactants add up to form the product.

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Reactants have more energy than the products.  

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3 years ago
Balancing chemical equations
mojhsa [17]

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marysya [2.9K]

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