Master Chemistry with Fun Quizzes & Brain Teasers!

At which point does a planet move most slowly in its orbit , at aphelion or perihelion
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Help me I will give you A reaction that occurs when 23 grams of iron (II) chloridereacts with sodium phosphate forming iron (II) phosphate and sodium chloride. What is the limiting reagent? How much sodium chloride can be formed?3FeCl2 + 2Na3PO4-Fe3 (PO4)2 +6NaCl
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What will happend if there is a greater speed of particles in a container?
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A device plugged into a 110-volt line produces 0. 50 amperes of current. The device is left on for 8. 0 hours. Find the cost of electricity if the power company charges 8 cents per kWh
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Elementary analysis showered that an organic compound contained c, h, n and o as the only elementary constituent. a 1.279g sample was burnt completely as a result of which 1.6g of co2, 0.77g of h2o were obtained. a separately weighted of nitrogen. what is the empirical formula of the compound?
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Which bonds are stronger: the bonds formed or the bonds broken?
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The hydrogen gas needed to power a car for 400km would occupy a large volume. Suggest one way that this volume can be reduced
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What is the molarity of the solution made by dissolving 15.1 g of solid naf in water and diluting it to a finalvolume of 550.0 ml?
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Silo measure d 640 grams of sulphur which occupies 540ml of container at 47 degree celsius.find the pressure of the gas.
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Which part of the sepal of a flower is most damaged by air pollution
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What valume of 0.1mol /dm hydrochloric acid will be required to neutralized 20cm of 2.0mol/dm sodium hydroxide?
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A student finds the mass and volume of four mystery liquids. The data is provided
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You analyze an unknown substance and discover that it mainly contains the elements carbon, hydrogen, oxygen , and nitrogen. What is the most likely source of the substance? Explain
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A truck tire is filled with 1. 85 moles of gas at a pressure of 2. 1 atm and a temperature of 300 K. What is the volume of the gas in the tire?
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What are the oxidation states exhibited by c, si, ge, sn,pb
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Which response strategy is the best choice for a heavy wet snow with 1 1/2-inch (3. 75 cm) of accumulation?
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How many grams of sodium sulfate will be formed if you start with 175. 0 grams of sodium hydroxide and you have an excess of sulfuric acid?
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At 15. 17 atm and 243. 41 K a certain gas has a volume of 641. 68 L. What will the volume of gas be at 561. 06 K and 70. 3 atm?
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You need to neutralize 100. 0ml of a 2. 5 M solution of H2SO4. How many grams of KOH are needed
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You are given 10. 34 grams of C7H14O7. How many moles of the compound do you have?
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How do i calculate the percent yield based on the theoretical yield and the actual yield
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NH3 + H2O = NH4+ + OH- If an acid is defined as an H+ donor, what is the acid in the reverse reaction
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Calculate E0, E, and G for the following cell reactions (a) Mg(s) + Sn2+(aq) Mg2+(aq) + Sn(s) where [Mg2+] = 0. 055 M and [Sn2+] = 0. 055 M
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The heating was stopped before all of the liquid can evaporate how will this affect the results of the experiment
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