Master Chemistry with Fun Quizzes & Brain Teasers!

How would each of the following changes alter the equilibrium position of the system used to produce methanol from carbon monoxide and hydrogen?CO(g) + 2H2 CH3OH(g) + heat
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If the balloon was filled up to a volume of 2. 0 L at room temperature (25oC), what will the new volume be if the balloon is placed in the freezer for a few hours at -20oC?Gay-Lussacs Law.
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Use Boyle's, Charle's, or Gay-Lussac's law to calculate the missing value in each of the following. A. V1=2. 0 L, P1=0. 82 Atm, V2=1. 0 L, p2=?
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Form a hypothesis You are cleaning out a cabinet beneath the kitchen sink and find an unused steel wool scrub pad has rusted completely. Will the remains of this pad weigh more or less than when it was new?
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Then, write balanced half-reactions describing the oxidation and reduction that happen in this reaction. ZnCl2
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A neutral atom of a certain element has 15 electrons. a. what is the ground state electron configuration of the element?b. how should the element be classified ?c. are the atoms of this element diamagnetic or paramagnetic?
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A hydorcarbon cxhy has mass ratio between hydorgen and carbon 1:10. 5. One litre of the hydrogen at 127c and 1 atm pressure weighs 2. 8 g,find the molecular formula of the hydrocarbon
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Which solubility curve on the right best represents the data table on the left?
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How many moles of carbon dioxide are produced when 6. 00 moles of methane are used ? (CH4 +2O2 -> CO2 + 2H2O) NEED ASAPa) 96. 0b)24. 0c)12. 0d)6. 0
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A drum used to transport crude oil has a volume of 162 L. How many grams of water, as steam, are required to fill the drum at 1. 00 atm and 1069C? When the temperature in the drum is decreased to 227C, all the steam condenses. How many mL of water (d = 1. 00 g/mL) can be collected?
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Descibe the stages of magneisum chloride from an acid and a metal
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How valence electrons determine an atom's chemical properties including reactivity
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What is the mass of solute in a 500mL solutiom of 0. 200 M Sodium Phosphate
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Is baking soda soluble in soda? Is sugar soluble in soda?
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An unmanned spacecraft sent from Earth to explore objects in space
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How a substance appears due to the wavelength of the light reflected off of its surface
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A radiation of 2530 amstrong incidents on HI results in decomposition of 1. 85 10^-2 mole per 1000 cal of radiant energy. Calculate the quantum efficiency
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January 2 is a third quarter moon. What is the approximate date of the next full moon?
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The Si unit of hurtz equals one wave passing a fixed point in one _____
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A stone weighing 1. 5 kilograms is resting on a rock at a height of 20 meters above the ground. The stone rolls down 10 meters and comes to rest on a patch of moss. The gravitational potential energy of the stone on the moss is joules. (Use PE = m g h, where g = 9. 8 N/kg. )
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PVC pipe is manufactured with a mean diameter of 1. 01 inch and a standard deviation of 0. 003 inch. Find the probability that a random sample of n = 9 sections of pipe will have a sample mean diameter greater than 1. 009 inch and less than 1. 012 inch
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If an area has a very cold climate, it is most likely that the area
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A 3.950 l sample of gas is cooled from 91.50c to a temperature at which its volume is 2.550 l. what is this new temperature? assume no change in pressure of the gas.
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Naturally occurring potassium consists of potassium-39 and potassium-41. calculate the percentage of each isotope present if theaverage is 39.1.
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