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Chemistry

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Why won't a fat-soluble vitamin dissolve in water

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Chemistry

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What was Pangea?

A) A huge mountain range that was found at the bottom of the ocean

B) A super continent from long ago that eventually broke up into the continents we have today

C) The term scientists used a long time ago for the lithosphere

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Chemistry

Kaylynn Fritz

What systems need to be in place to ensure fairness in healthcare?

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Chemistry

Devyn

Mg (OH) 2 + HCl - - > MgCl2 + H2O

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Chemistry

Adyson Anthony

an acrostic poem with the word energy

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Chemistry

Gage Washington

What are some chemacial changes in your school?

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Chemistry

Carleigh Livingston

Which of the following is an example of a double-replacement reaction? A. 3K + AlCl3à 3KCl + Al B. KOH + HBr à KBr + H2O C. CH4 + 2O2à CO2 + 2H2O D. Cu + 2H2SO4à CuSO4 + SO2 + 2H2O

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Chemistry

Tamara Bentley

Distinguish between thermal cracking and catalytic cracking

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Chemistry

Natalya Hart

At the end of the reaction you washed the chemicals into a beaker using water. Why was it OK to use water to do this if Grignard reagents are very reactive towards water?

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Chemistry

Alina Everett

What happens when the electron moves from the first energy level to the second energy level?

Energy is absorbed, and an emission line is produced.

Energy is released, and an emission line is produced.

Energy is absorbed by the atom.

Energy is lost from the atom.

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Chemistry

Zaria Bridges

Calculate how many mg is lethal to resident Arnold who weighs 45 kg and resident Harold who weighs 96 kg. The LD50 of lead is 450 mg/kg

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Chemistry

Macie

The specific heat of aluminum is 0.125 cal/g °C. If 12.5 grams of aluminum were heated from 20.0 °C to 100.0 °C, calories of heat energy would be absorbed by the aluminum.

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Chemistry

Dayanara Cook

What type of radioactive decay results in uranium-238 becoming thorium-234?

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Chemistry

Aylin Benjamin

What is the differnce between a stimlus and a response

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Chemistry

Felipe Brennan

A stack of books are sitting on the table. Which force is pulling it down? A. Buoyant force B. Pressure force C. Gravitational force

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