Chemistry » Page 35

Chemistry

Josie

Why is the current model of the atom considered to be most accurate

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Chemistry

Lisa Colon

What types of materials are usually ductile

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Chemistry

Guest

Consider the compound Sn (SO4) 2 and answer the following questions:

a. What is the name of this compound?

b. What is the molar mass of this compound? Explain how you calculated this value.

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Chemistry

Mccall

Why does Tom Zambrano think that renewable energy science is a good choice for a career?

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Chemistry

Jude Navarro

For the reaction represented by the equation 2na + cl2® 2nacl, how many grams of chlorine gas are required to react completely with 2.00 mol of sodium?

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Chemistry

Alana Oneal

What is always true of a weak acid

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Chemistry

Amaya Bridges

Which monosaccharide commonly found in all disaccharides?

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Chemistry

London Robinson

DDT, an insecticide banned in the United States for most uses, has the formula C14H9Cl5. Find its percent composition.

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Chemistry

Eve

A 8.50 g sample of KCl is dissolved in 66.0 mL of water. The resulting solution is then added to 72.0 mL of a 0.280 M CaCl2 (aq) solution. Assuming that the volumes are additive, calculate the concentrations of each ion present in the final solution.

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Chemistry

Kenzie Sanford

Which compound is an isomer C4H9OH

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Chemistry

Ryleigh Gamble

If 50 mL of 0.2 M NaC2H3O2 and 10 mL of 1.0 M HC2H3O2 are diluted to a final volume of 100 mL, what is the pH of the buffer solution?

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Chemistry

Jacoby Mayo

What earth sphere extends from earth's core to earth surface?

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Chemistry

Arely Lowery

In each case, decide if the change is a "chemical change" or a "physical change". a) A cup of household bleach changes the color of your favorite T-shirt from purple to pink. b) Water vapor in your exhaled breath condenses in the air on a cold day. c) Plants use carbon dioxide from the air to make sugar. d) Butter melts when placed in the Sun

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Chemistry

Maddison

Squeezing a balloon is one way to burst it why

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Chemistry

Alvin Garcia

What is the molar mass of acetylsalicylic acid (Aspirin) ? (HC₉H₇O₄)

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