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Chemistry

Serena Santiago

Standing near a campfire, you can feel heat. This is an example of

a) acceleration

b) conduction

c) convection

d) radiation

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Chemistry

Natalya Glass

Find the mass in grams of 2.00*1023 molecules of C10H140

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Chemistry

Madalyn Gill

Choose the substance with the lowest surface tension. Choose the substance with the lowest surface tension. a) H2O b) (CH3) 2CO c) CH3CH2CH2CH3 d) C6H6 e) CH3OH

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Chemistry

Peter Dunlap

the men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many seconds would it take to swim 0.150 miles?

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Chemistry

Kate White

Why is radioactive decay a good method of measuring the absolute age of ancient fossils

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Chemistry

Guest

Carbonic acid (H2CO3) forms when carbon dioxide (CO2) dissolves in water according to this equation:

CO2+H2O->H2CO3

How many moles of CO2 must dissolve in an excess of water to produce 2 moles of H2CO3?

A. 3 mol

B. 2 mol

C. 1 mol

D. 4 mol

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Chemistry

Delaney Schwartz

Explain hydrocarbons as fue

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Chemistry

Logan Stuart

Which of the following is not sublimable?

Dry ice

Calcium chloride

Ammonium chloride

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Chemistry

Anabel Wilcox

A single cell undergoes mitosis every five minutes. How many cells will result from this cell in 15 minutes? In 30 minutes?

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Chemistry

Susan Terry

The density of gold is 19.32 g/mL what is the volume of a nugget of gold with a mass of 71.13 g?

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Chemistry

Elisa Roy

Explain how your teeth work as a wedge?

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Chemistry

Piglet

What is the value of 100 c on the Kelvin scale? A. 100 K B. 273 K C. 373 K D.-373 K E.-300 K

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Chemistry

Kelley

In order to obtain energy animals must do what?

A) consume food

B) produce food

C) get sunlight

D) make new cells

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Chemistry

Lorena Carrillo

Which is the saturated zone?

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Chemistry

Dayanara Glenn

What are the three main chararteritis of the ocean?

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