Chemistry » Page 52

Chemistry

Finn

If chlorine gas is bubbles through an aqueous solution of sodium iodide, the result is elemental iodine and aqueous sodium chloride solution. What kind of reactions took place?

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Chemistry

Nadia Dyer

Describe how a wave is reflected on flat surfaces and curved surfaces?

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Chemistry

Guest

A local farmer uses chemical fertilizers in his farm. The runoff from the farm pollutes a river which supplies drinking water in the location. This causes serious health problems among people in the location. Which of these is the best method to solve this problem?

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Chemistry

German Reeves

The reaction rate between reactants Z and Y is proportional to the cube of [Z]. What is the rate law for this reaction?

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Chemistry

Ellis Hahn

Butter is melted in a pan. Which of the following is true about the change?

A. It is a physical change that releases energy

B. It is a chemical change that absorbs energy

C. It is a physiscal change that absorbs energy

D. It is a chemical change for which there is no change in energy

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Chemistry

Izabella Dean

Wilma dissolves 10,00 grams of glucose with water and the final volume of solute and solvent is 66.67 mL. What is the concentration of glucose in her solution? a. 10% (m/v) O b. 15.% (mv) O c. 25 % (m/v) d. 30.% (m/v) e. None of the above.

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Chemistry

Larry Brennan

It takes 11.2 kj of energy to raise the temperature of 145 g of benzene from 22.0°c to 67.0°c. what is the specific heat of benzene? it takes 11.2 kj of energy to raise the temperature of 145 g of benzene from 22.0°c to 67.0°c. what is the specific heat of benzene? 5.18 j / (g * °c) 3.48 j / (g * °c) 1.15 j / (g * °c) 1.72 j / (g * °c)

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Chemistry

Guest

Find [OH-], pH and pOH of a solution where [H+]=7.2x10-2M

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Chemistry

Brian Roth

What is the power of 10 when 72,500 is written in scientific notation

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Chemistry

Klein

77.60 ml of. 210 M NaOH are required to neutralize 25.05 ml

ofH2SO4 solution in a titrationexperiment.

Calculate the molarity and normality of

theH2SO4 solution.

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Chemistry

Guest

How is carbon the element used

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Chemistry

Javion Leblanc

How many hydrogen atoms are in 78.4 grams of hydrochloric acid

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Chemistry

Guest

What causes solar winds?

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Chemistry

Haylie Sims

Why are comets unlikely to be able to support life? A. A comet's environment is not stable. B. A comet does not have an atmosphere. C. A comet does not have a reliable energy source. D. all of these

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Chemistry

Scout

Na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels. na + leaks through neuron membranes faster than k + because of the properties of the non-gated leak channels.

a. True

b. False

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