Master Chemistry with Fun Quizzes & Brain Teasers!

A solution is formed by mixing 15.2 g KOH into1.200 kg water. Use the periodic table to find themoles of solute.
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What is thermal equilibrium?
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Which technology is unted to service versand
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What is the total mass of solute in 1000 g of a solution having a concentration of 5 ppm
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Identify whether each of these hydrocarbons is saturated or unsaturated. Place an "S" for "saturated" next to each hydrocarbon letter that is saturated. Place a "U" for "unsaturated" next to each hydrocarbon letter that is unsaturated.A. 2 central carbons, with C H 3 at each end, and also single bonded to the first carbon.B. 3 central carbons, with the first 2 double bonded to each other. The left end is bonded to C H 3, and the right end is bonded to 3 C H 3.C. 2 central carbons, with H above, below, and to both sides.D. 5 central carbons, with H above and below each, and H and to both ends of the chain.ANWSERS: A. S B. U C. S D. S You're welcome >:D
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Clasifica los siguientes elementos en metales, no metales, metaloides , o gases , nobles : flor , azufre , nitrogeno , cloro , magnesio , helio , sodio , bromo , silicio , telurio
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Describe the motion of molecules in an ice cubeand in a radiator in winter.Molecules in an ice cube move more slowly than moleculesradiatorCOMPLETEDescribe the motion of molecules in these twosubstances when the ice cube is placed on theradiator.AUCU
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What type of energy is used to power up the lite bulb? When the light bulb turns on, energy is being converted into what forms? How do you know? What happens when you increase the voltage of the battery? Explain using terms like light, thermal, electric energy.
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What animals are in the Arctic Tundra?
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If atmospheric pressure measurement for taking at regular intervals from sea level to the stratopause The measurements with most likely show that the pressure
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Molar mass of Fe2O3 = g/mol
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In a chemical equation, which symbol should be used to indicate that a substance is in solution?(s)(g)(ag)
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A sample of gas occupies 100.0 mL at standard pressure. What volume will the gas occupy at a pressure of 80.0 mm Hg if the temperature remains constant? *
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Using the stars as an example explain how nuclear fusion works
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Complete the sentences to describe the structure of DNA.The shape of the DNA molecule is called a doubleThe backbone of DNA is made ofmolecules and phosphate moleculesThe "rungs" of DNA are made of
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Identify whether this describes heat or temperature.Definition: a form of energy
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Which of the following is true for a reliable scientific source?It cites logicIt cites opinions.It cites valid data.It cites common sense.
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if 600.0 ml of air is heated from 293 k to 333 k what volume will it occupy
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Successful rifting can create new oceans and split apart continents. True or False
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It is best to say that electric motors require _______ to work. a. a continuous current b. a galvonometer c. a generator d. energy
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It is best to say that electric motors require _______ to work. a. a continuous current b. a galvonometer c. a generator d. energy
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What are four unusual properties of water that are a direct result of hydrogen bonding
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What do you need in order to do a stoichiometric calculation? (Choosemultiple)Balanced Chemical EquationMolar masses of compounds involvedThe type of reaction taking placeOxidation Numbers
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7. As the temperature of a fixed volume of a gas increases, the pressure willOvary inverselyO increaseO decreaseO not change
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