Master Chemistry with Fun Quizzes & Brain Teasers!

Determine the formula of the hydrated salt with iron 20. 14%, oxygen 23. 02%,sulphur11. 51%,water 45. 32% and molecular mass ofsalt is278
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8250 J of heat is applied to a piece of aluminum, causing a 40. 0 C increase in its temperature. The specific heat of aluminum is 0. 9025 J/g C. What is the mass of the aluminum?
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Identify each substance based on its description. jake collected samples of two substances while he was out walking. after taking the samples home, he ran tests and found that one substance is slippery and conducts electricity in water. these properties made jake conclude that the substance is probably . the other substance continuously made bubbles of hydrogen gas when jake dropped magnesium into an aqueous solution of the substance. jake concluded that the second substance is probably .
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If i contain 3. 15 moles in a container with a volume of 67 liters and at a temperature Of 472 K what is the pressure
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CAN someone please help me with this please?
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What volume of nitrogen reacts with 33. 6 litres of oxygen to produce nitrogendioxide
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To determine experimentally if a reaction is exthermic a student should use a
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15 moles of NaOH are dissolved in 2. 0 L of solution. What is the molarity of the solution?
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If 3grams of sodium reacts with 25 grams of sulfuric acid to form sodium sulfate and 1 gram of hydrogen and no sodium is left after the reaction but 9grams of acid remained unreacted how many grams of sodium sulfate were formed
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Metamorphic rock that breaks into sheets when broken
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How dose the angle of a light beam affect the intensity and the amount of light reflected or transmitted?
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The concentration of NO3- ions in 0. 25 M Ti(NO3)4(aq) is???
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Calculate the heat energy transferred to 2. 3g of copper, which has a specific heat of 0. 385 J/gC, that is heated from 23. 0C to 174. 0C. (Enter the answer rounded to two decimal places with a space between the number and unit, ex. : 145. 23 J)
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Typical household bleach has a ph of 13. what is the h3o concentration in household bleach?
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What is the least number of electrons this atom must have in order to have a negative charge?
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Rogue waves are a rare occurrence in which the amplitude of the wave can reach as high as 15 meters. Calculate the energy of rogue wave of this amplitude
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2. Calculate the molality of a water solution if the freezing point is: (a)-9. 3C (b)-27. 9 C
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Who was the first person that was to attend to arrange the element in what year
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Predict which substances would have the highest volatility. explain why. ch3ch2oh c6h6 ch3och3h2opredict which substances would have the highest surface tension. explain why. h2och4ch3och3ch3oh
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Dams change the flow of water on earth's surface. how could you model the way this change in flow affects earth's rocks and soil? what would you expect the model to show?
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How many liters of 0. 75M KCl would you need if you required 2. 0 moles of the solute
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1. Hydrogen + oxygen yields waterLabel what type of reaction (synthesis, decomposition, single replacement, double replacement or combustion) Write the balanced chemical equation How much water could you get if you started with 250. 0 grams of hydrogen?How much water could you get if you started with 250. 0 grams of oxygen?Which is the limiting reactant?
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What volume (in litres) of 0. 200 M NaOH is required to neutralize 22. 3 mL of 0. 152 M HCl?
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What would happen to future island chains if volcanic eruptions stopped occurring on the seafloor?
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