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Chemistry

Johnathan Mason

Which of the following statements best describes the relationship between elements and compound

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Chemistry

Jakob

Define Nuclear Fission and Fusion

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Chemistry

Luis Gibbs

avogadros law relates the volume of a gas to the number of moles of gas when temperatures and pressure are constant. according to the law, how many moles gaseous reactants if the volume if the volume of the gases is doubled

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Chemistry

Phillip

Do I need to include the way I did the chemical experiment on my chemistry lab report for my chemistry BSC?

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Chemistry

Guest

Mention 6 products from coal tar as a result of destructive distillation of coal

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Chemistry

Madilynn

Reaction E0

Zn → 2e - + Zn2 + 0.76

2F - → 2e - + F2 - 2.87

F2 + Zn → ZnF2

Will this redox reaction take place?

yes

no

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Chemistry

Sabrina Shaffer

An iodine ion contains 53 protons, 52 neutrons, and 54 electrons. what is the net charge of the ion?

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Chemistry

Guest

What is the final product of the following sequence of reactions? A. A B. B C. C D. D 21. Which of the following reacts the fastest with NaOH, H2O? A. ethylene oxide (oxirane) B. cis-2,3-dimethyloxirane C. trans-2,3-dimethyloxirane D. 2,2,3,3-tetramethyloxirane 22. What is the product of the reactions below?

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Chemistry

Huynh

Which best describes the function of the structure labeled y

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Chemistry

Cherish Larsen

Which statement is a valid conclusion about the activation energy of the reverse reaction if the forward reaction is exothermic?

a) The activation energy of the reverse reaction is the same as that of the forward reaction.

b) None of the listed answers are correct

c) No valid conclusion can be drawn from the information provided.

d) The activation energy of the reverse reaction is less than that of the forward reaction.

e) The activation energy of the reverse reaction is greater than that of the forward reaction.

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Chemistry

Thaddeus Gibson

Why are metallic and ionic substances harder to melt than covalent substances

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Chemistry

Jaquan Boyle

In general, ionization energies increase across a period from left to right. Explain why the second ionization energy of Cr is higher, not lower, than that of Mn.

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Chemistry

Mateo Mays

A rectangular piece of platinum has dimensions of 3.50 cm*2.16 cm*1.08 cm and weighs 175.5 g. What is the density of platinum?

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Chemistry

Evelin Browning

True or false after a volcanic eruption it is nearly impossible for plant life to grow due to poor soil

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Chemistry

Fiona Kelly

Which statement defines calorimetry? the conservation of energy a unit of energy that is used when calculating energy exchange a device that is used to measure the heat that is gained or lost during a chemical change the measurement of energy that is given off or absorbed in a physical or chemical process

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