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NARA [144]
2 years ago
12

Choose the three chemical properties of a penny

Chemistry
1 answer:
lukranit [14]2 years ago
3 0

The three chemical properties of a penny

Penny ( Pennies: plural; refer to a number of individual coins)

  • A chemical property of a substance is a characteristic of a particular substance that can be observed in a chemical reaction. Some major chemical properties include flammability, toxicity, heat of combustion, pH value, rate of radioactive decay, and chemical stability.

<h3>What is chemical property?</h3>

The chemical properties of a substance can be determined by performing experiments that use specific materials or processes with known characteristics.

The following are three chemical properties to consider when choosing an element to make coins:

  • Reactivity to water.

  • Reactivity to oxygen.

  • malleability.

It should malleable, ductile, and an extremely good conductor of both heat and electricity.

Read more about penny:

brainly.com/question/19104371

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Answer:

True => ΔH°f for C₆H₆ = 49 Kj/mole

Explanation:

See Thermodynamic Properties Table in appendix of most college level general chemistry texts. The values shown are for the standard heat of formation of substances at 25°C. The Standard Heat of Formation of a substance - by definition - is the amount of heat energy gained or lost on formation of the substance from its basic elements in their standard state. C₆H₆(l) is formed from Carbon and Hydrogen in their basic standard states. All elements in their basic standard states have ΔH°f values equal to zero Kj/mole.

7 0
3 years ago
What is 125000 in scientific notation?
Usimov [2.4K]

Answer:

1.25 x 10^5

Explanation:

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Consider the reaction of A(g) + B(g) + C(g) =&gt; D(g) for whichthe following data were obtained:
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Answer:

rate= k[A]²[B]²[C]

Explanation:

When concentration of A is increased two times ,keeping other's concentration constant , rate of reaction becomes 4 times .

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When concentration of B is increased two times , keeping other's concentration constant,rate of reaction becomes 4 times.

So rate is proportional to [B]²

When concentration of C is increased two times , keeping other's concentration constant, rate of reaction becomes 2 times.

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So rate= k[A]²[B]²[C]

5 0
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How many moles are there in 5.699 liters of neon gas at STP? Express your answer with the appropriate significant figures and un
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One mole of Neon gas will occupy 22.4 at STP.

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