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Chemistry
Jamir Wilkins
1) which branch of science allow researchers to piece together details about ancient skeletons? 2) how can the clavicle be used to tell age? 3) how do pelvic bones reveal gender? 4) what can isotopes in tooth enamel and bones tells us?
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Chemistry
Raul Francis
Is Pb (NO3) 2 soluble or insoluble?
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Chemistry
Miley Reynolds
How is helium different from other noble gases?
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Chemistry
Cade Terrell
Limestone is composed almost entirely of calcite which has the chemical formula caco 3. As a result, limestone is classified as
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Chemistry
Carlo Escobar
How do you calculate the number of moles of an element from a given mole quantity of a compound, using the chemical formula?
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Chemistry
Aspen Browning
In an experiment, you use a ruler to measure two plants. What can you do with the data you gather?
A) measure the height of the plants
B) compare and contrast the weight of the plants
C) compare and contrast the height of the plants
D) guess the temperature of the plants
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Chemistry
Guillermo Gregory
Consider a series circuit of electrochemical decomposition cells as shown in the graphics located under the resources tab. if 12.0 g of gallium is collected in the gacl3 cell, determine the mass of aluminum collected in the aluminum chloride cell.
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Chemistry
Taylor Castillo
The division of the earth's surface into twenty-four time zones is called:
Greenwich time
Standard time
Meridian time
Clock time
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Chemistry
Quintin Chavez
Which of the following can be used to measure electricity
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Chemistry
Guest
What does it mean for an element to be reduced?
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Chemistry
Boston Harmon
What happens when a oceanic crust and a continent crust collide? What forms? Which is more denser? What type of boundary?
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Chemistry
Mckenna Herring
a student determined that 8.2 milligrams of oxygen is dissolved in a 1000 gram sample of water at 15 degrees Celsius and 1 atm what type of solution is this sample
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Chemistry
Brycen Osborne
An equilibrium mixture contains 0.600 mol of each of the products (carbon dioxide and hydrogen gas) and 0.200 mol of each of the reactants (carbon monoxide and water vapor) in a 1.00-L container. How many moles of carbon dioxide would have to be added at constant temperature and volume to increase the amount of carbon monoxide to 0.300 mol once equilibrium has been reestablished?
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Chemistry
Lucille Morrison
which law is associated with interia
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Chemistry
Patricia Lambert
Which molecule has polar bonding and is nonpolar?
HCl,
OF2,
SF6,
HCN,
CHF3
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