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Chemistry

Guest

State the general relationship between temperature of the water and the amount of the salt that will dissolve in the water

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Chemistry

Alvin Cuevas

Consider a triprotic acid like phosphoric acid or citric acid. which expression correctly describes the relative magnitudes of the three ka equilibrium constants?

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Chemistry

Linda Escobar

If 14g of ethene reacts with excess amount of steam to give 17.25g of ethanol what is the percentage yield

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Chemistry

Saul Collier

The electrical conductivity of an aqueous solution depends on the concentration of which particle in the solution

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Chemistry

Emely Woodward

What changes in physical properties can be used as evidence that a chemical reaction has occured?

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Chemistry

Guest

What distance is travled by a police car that moves at a constant speed of 1.5 km/min for 5.0 min?

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Chemistry

Guest

You have 3 L of a 5M solution of calcium chloride. How many L would you be able to make of a 0.5M solution?

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Chemistry

Amber Rich

Is the knowledge and tools that people use to manipulate their environment. a. Ethnocentrism c. Diffusion b. Technology d. Reformulation

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Chemistry

Jason Dawson

Suppose that a solution is tested for NO2 ion by adding 3M H2SO4 and heating, repeating this process until no further reaction occurs. This solution

is then analyzed for NO3 ion by adding FeSO4 solution and more H2SO4, heating the test tube and its contents. The NO3 ion reaction is positive. In this case, is it accurate to state that NO3 ion was present in the original solution? Briefly explain. Write appropriate equations to support your answer.

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Chemistry

Adrienne

Is pepperoni pizza an element?

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Chemistry

Douglas Wood

What is the molarity of a 31% (w/v) glucose solution? the chemical formula for glucose is c6h12o6.?

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Chemistry

Jayvion Farrell

What is diffusion and osmosis?

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Chemistry

Rowan

Why are H2S, mercaptans, sulphur compounds and salt removed from the crude oils?

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Chemistry

Amy Hardin

If amino acids could be produced by random chemical processes

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Chemistry

Kailey Adkins

Despite the name, dry cleaning does involve the use of liquid solvents. why would a dry cleaner use both polar and nonpolar cleaning solvents

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