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Chemistry
Skyler Singh
How many significant figures are in 434.00
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Chemistry
Elliott
Which statement would support a merit of the Bronsted-Lowry base theory has over the Arrhenius base theory?
A) Hydronium ions are Bronsted-Lowry bases released in solution.
B) Bronsted-Lowry bases include both proton and hydroxide acceptors.
C) The Bronsted-Lowry bases can act as electron and proton acceptors.
D) Hydroxide ions are the only Bronsted-Lowry bases produced in solution.
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Chemistry
Adriel Ruiz
How are the properties of elements determined
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Chemistry
Kylie Pitts
An acid had a molarity of 0.01 M. What does the 0.01 M refer to?
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Chemistry
Chad
Why noble gas neon is an unreactive element?
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Chemistry
Elisha Huang
Any reaction that absorbs 150 kcal of energy can be classified as
a. activated.
b. exothermic.
c. oxidation.
d. endothermic
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Chemistry
Deborah Flores
Consider a triprotic acid like phosphoric acid or citric acid. which expression correctly describes the relative magnitudes of the three ka equilibrium constants?
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Chemistry
Armani Lin
A student used a 10 ml volumetric pipet to measure and deliver an unknown liquid to a flask for density determination. the student forced all of the liquid out of the pipet with the bulb. will the determined density of the liquid be correct, too high or too low?
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Chemistry
Diesel
How many liters of water must be added to 5.40 g of sodium nitrate to create a solution that has a concentration of 3.81 g/L?
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Chemistry
Amy Wilson
How does microorganisms affect the quality of soil
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Chemistry
Alondra Ruiz
The red lionfish (shown below) is a voracious predator of small fish, including young angelfish and parrotfish. In the Caribbean, red lionfish have no natural predators. What is the most likely long-term outcome of the introduction of lionfish to a pristine reef?
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Chemistry
Caitlyn Knight
Cryolite, Na3AlF6 (s), an ore used in the production of aluminum, can be synthesized using aluminum oxide. Balance the equation for the synthesis of cryolite. equation: Al2O3 (s) + NaOH (l) + HF (g) ⟶Na3AlF6+H2O (g) If 14.0 kg of Al2O3 (s), 59.4 kg of NaOH (l), and 59.4 kg of HF (g) react completely, how many kilograms of cryolite will be produced? mass of cryolite produced: kg Na3AlF6 Which reactants will be in excess? HF Al2O3 NaOH What is the total mass of the excess reactants left over after the reaction is complete? total mass of excess reactants: kg question source: MRG - General Chemistry|publisher: University Science Books
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Chemistry
Ronin Swanson
Calculate the pH of a 2.0 M solution of HClO4?
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Chemistry
Makenzie
What type of reaction is: CaO + H2O - > Ca (OH) 2?
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Chemistry
Mayra Pittman
Which of the following is a good conductor of heat and electricity? (*hint: which is a good conductor-metal or nonmetal)
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