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Chemistry

Skylar Kirk

How many molecules of molecular oxygen react with four molecules of NH3 to form four molecules of nitrogen monoxide and six molecules of water?

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Chemistry

Sheena

How many unchanged atoms would remain after 3 half-lives if the initial sample had 600 atoms? Explain.

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Chemistry

Sariah Alvarez

Chegg Identify the type of reaction [ (combination (c), decomposition (d), combustion (co), single replacement (sr), double replacement (dr), or neutralization (n) ] and write a balanced equation. If there is no reaction, write NR. Gaseous propane (C3H8) reacts with gaseous oxygen.

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Chemistry

Leslie Prince

A sample of a radioactive isotope initially contains 20 x 10^10 atoms. After 16 days, 5 x 10^10 atoms remain. what is the half-life of the isotope?

A) 12 days

B) 20 days

C) 10 days

D) 16 days

E) 8 days

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Chemistry

Tobie

What happens to a hill due to wind blown sand

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Chemistry

Ashton Brady

For the reaction 2co3 + (aq) + 2cl - (aq) →2co2 + (aq) + cl2 (g). e∘=0.483 v what is the cell potential at 25 ∘c if the concentrations are [co3+] = 0.383 m, [co2+] = 0.369 m, [cl-] = 9.00*10-2 m, and [cl2] = 0.150 m?

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Chemistry

Jaydin Beard

0.75 fluid ounces to

milliliters.

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Chemistry

Dottie

Which of the following elements is commonly found in the Earth's crust, living matter, oceans, and atmosphere? hydrogen, neon gold or bromine?

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Chemistry

Carolina Williams

How many moles of water (h2o) are present in a beaker containing 45.9 g h2o?

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Chemistry

Amir Middleton

Name four elements that have properties similar to chlorine

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Chemistry

Leandro Hansen

Which of the following is an element? A. CO2 B. H2O C. Xy D. Na

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Chemistry

Elaine Savage

Wny do we use the unit light years

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Chemistry

Lydia Rosario

What "Desconposition" mean?

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Chemistry

Aimee Aguilar

Which of the following statements is FALSE?

Which of the following statements is FALSE?

a. The rate of second order reactions is dependent on concentration.

b. The rate of a first order reaction is dependent on concentraion.

c. The half life of a second order reaction is not dependent on concentration.

d. The half life of a zero order reaction is dependent on concentration.

e. None of the statements are FALSE.

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Chemistry

Rebecca Gould

How many hours are spent sleeping 33%

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