Chemistry » Page 31

Chemistry

Cohen Bowers

A substance that permits the flow of electrons is a (n

a. conductor

b. insulator

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Chemistry

Yaretzi Baird

The volume, in liters, of 538 g of CO2

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Chemistry

Cheyanne Grimes

9.86 x 10²⁸ O-atoms require what volume (L) N₂O₂ at STP?

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Chemistry

Arnav Stephenson

What is a group of elements that form salts called

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Chemistry

Armstrong

Which number represents an acidic pH, 4 or 9?

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Chemistry

Rohan Johnston

What would make the risk of these cancers even worse for someone who drinks alcohol?

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Chemistry

Guest

For what reasons would modern scientists accept dalton's atomic theory but not the idea of an atom proposed by the greek philosophers?

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Chemistry

Jeremiah Wood

Which physical method can be used for obtaining a sample of salt from a small beaker of salt water?

boiling

freezing

chromatography

sorting

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Chemistry

Deon Lynn

Science is a unique field of thought because it relies on

to describe the world.

•Observations and experim

•Teachers and students

•Books and writings

•Scientists and statements

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Chemistry

Dixie Gates

Hemoglobin, a protein in red blood cells, carries o2 from the lungs to the body's cells. iron (as ferrous ion, fe2+) makes up 0.33 mass % of hemoglobin. if the molar mass of hemoglobin is 6.8 Ã 104 g/mol, how many fe2 + ions are in one molecule?

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Chemistry

Campbell Livingston

What could you predict about a methane molecule that would most likely be made by using both the quantum model of the atom and John Dalton's model?

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Chemistry

Keenan Mccullough

What is the molar mass of an unknown hydrocarbon whose density is measured to be 1.97 g/l at stp?

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Chemistry

Guest

Which is an example of flow of heat through conduction

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Chemistry

Genevieve Stanton

Which of the following is an extensive physical property of matter? volume viscosity odor density

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Chemistry

Warren Mercer

When is Ksp determined for a system?

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