2ZnS+3O2=>2ZnO+2SO2 how many grams of sulfur dioxide can be produced when 65.0 grams of zinc sulfide react?

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Q: Calculate the pH at 25°C of 290.0 mL of a buffer solution that is 0.310 M  NH4Cl and 0.310 M  NH3…

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Q: Precise measurements give the following masses: nuclide mass particle mass 2.0141 u 0n 1.0086649 u н…

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Q: What is the activation energy of a reaction if it has the following rate constants? Rate Temperature…

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Q: For the nitration of toluene, to obtain m-bromotoluene yields similar to the ortho or para position,…

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Q: The K, of HONH2 is 1.1 x 108. a. Calculate the pH and percent dissociation of a solution containing…

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Q: Use the table of standard reduction potentials to the right to answer the questions below Reduction…

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Q: How many liters of a 5.00 M solution of Na3PO4 are needed to have 4.00 equivalents ?

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Q: The copper(II) ion reacts with phosphate ion to form an insoluble ionic compound, Ksp = 1.40×10-37.…

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Q: A 1.00 L solution contains 19.52  g of nitrous acid, HNO2. What mass of sodium nitrite, NaNO2,…

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Q: 1) excess Mg 2) excess CO, 3) H,0 Br NH2 1) NaNO,, HCI 2) H,PO2, heat CH-OCH, CH-OCH, NaOCH

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Q: Methylamine, CH3NH2, has a Kb = 4.40 x 10-4. What is the pH of a 0.230 M  solution of methylamine?

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Q: What is the major organic product obtained from the following sequence of reactions

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Q: Draw the organic product(s) of the following reaction. aqueous H,SO4 CH,0 NaCN Draw curved arrows to…

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Q: 0.15 M aqueous solution of the weak base B at 25°C has pH of 8.88. The value of Kb for B is ______.

A: We will calculate the POH first than we will use the relation POH = 1/2(PKb - log C).

Q: Some measurements of the initial rate of a certain reaction are given in the table below. [N] H…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.