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America Rasmussen
ChemistryChemistry
Consider the combustion of octane (C8H18)

2C8H18+25O2-> 16CO2+18H2O

How many grams of CO2 are produced when 191.6g of octane are burned?
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Landen Mathews
ChemistryChemistry
The Ka of an acid is 1.3 x 10^-7. Based on the Ka and its relationship with Kw, what is the value of Kb? Use KaKb=Kw

1.3 x 10^-21

7.7 x 10^-15

1.3 x 10^-14

7.7 x 10^-8
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Kaliyah Arnold
ChemistryChemistry
The rate expression for a first order reaction could be

A.) Rate=k[A]

B.) Rate=k[A]^2[B]

C.) Rate=k[A][B]

D.) Rate=k[A]^2[B]^2
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Tia Curtis
ChemistryChemistry
When an organism is finished growing, which of the following best describes what happens on the cellular level? A. Its cells stop reproducing. B. Its cells reproduce and die at the same rate. C. Its cells stop growing. D. Its cells grow and shrink at the same rate.
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Emilia Bass
ChemistryChemistry
What are four indications that a chemical reaction bay be taking place
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Alivia Hobbs
ChemistryChemistry
If there is losts of pollution, what happens?
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Malik Hendricks
ChemistryChemistry
The atom cobalt has 27 electrons. how many energy levels will its electrons use?
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Alondra Vargas
ChemistryChemistry
Fusion reaction power the blank in space. Humans currently use fusion in blank, but erases hers are seeking more applications

1st blank (asteroids, planets, sun and the stars)

2nd blank (electric power plants, steel production, weapons)
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Julien Rich
ChemistryChemistry
What is the largest layer of Earth?
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Peyton Bruce
ChemistryChemistry
Which element is likely to gain one electron when it combines chemically with another element? a potassium b krypton c gold d chlorine?
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Patches
ChemistryChemistry
The molar mass of glucose is 180.1548 grams and that of carbon dioxide is 44.01 grams. calculate the mass in grams of CO2 required for this amount of glucose
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Humberto Osborn
ChemistryChemistry
Choose the correct statements about solutions.

A. A solution is not a type of mixture.

B. A solute is the thing being dissolved.

C. Something is insoluble if it is unable to dissolve.

D. A solvent is the thing being dissolved.
Answer Answers (2)
Jazmine
ChemistryChemistry
Which forms when a humid air mass rises into a cooler temperature area?

A) clouds

B) dew

C) frost

D) rain
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Payne
ChemistryChemistry
Which of the following is not an SI
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Deshawn Orozco
ChemistryChemistry
What happens to electrical energy as a light bulb lights
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