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Chemistry
Preston Richards
12.23 g of ammonia (NH3) are dissolved in enough water to make 560.0 mL of solution. How many moles of NH3 are added to the water?
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Chemistry
Reed Warren
What is the most striking part of the Rutherford scattering stimulation?
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Chemistry
Veronica Tanner
How many sugar molecules are in a 3 M sugar solution (V=1L) ?
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Chemistry
Colt
You have two solutions, both with a concentration of 0.1M. Solution A contains a weak acid with a pKa of 5. The pH of solution A is 3. Solution B contains a weak acid with a pKa of 9. The pH of solution B is:
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Chemistry
Peyton Lutz
You have 125 g of a certain seasoning and are told that it contains 92.0 g of salt. What is the percentage of salt by mass in this seasoning?
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Chemistry
Alyssa
How do you describe how sugar dissolves in tea using the big idea of particles?
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Chemistry
Taylor Ferrell
Independent variables are known quantities such as time or the amount of a starting substance. Is this true?
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Chemistry
Dario Hodge
Does the atomic nucleus contain protons, neutrons and electrons
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Chemistry
Marianna Larsen
How important is the thymus gland keeping your body free from diseases?
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Chemistry
Paola Hinton
A pitcher accelerates a baseball with a mass of 1.5 kg at 6m/s2. How much force does this take?
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Chemistry
Gabriella
If a jar of honey sits for a long time, sugar may crystallize in the jar. Describe two possible causes for the crystallization.
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Chemistry
Yazmin
Which is true about the total number of reactants and the total number of products in this reaction c5h12 l?
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Chemistry
Jaylyn Parker
Which type of bonding is usually exhibited when the electronegativity difference between two atoms is 1.1?
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Chemistry
Lyons
Which is a way to Express concentration of solution.?
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Chemistry
Kelvin Cantrell
How many moles of hydrogen will react with 40g oxygen
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