Chemistry, 18.07.2020 22:01 mustafa455486a
4. 1.00 mole of Ca(NO3)2 contains the same mass of N as 1.00 mole of NaNO3. True or False
5. The theoretical yield of a reaction is generally less than the actual yield. True or False
6. Which of the following statements is/are TRUE concerning the "mole"? (a) One mole of a substance contains as many particles as exactly 12 amu of carbon-12. (b) One mole of a substance contains 6.022 x 1023 particles of that substance. (c) There are 6.022 x 1023 carbon atoms in 12.00 g of carbon-12. (d) Because it is heavier, a mole of iodine atoms contains more particles than a mole of bromine atoms.
7. The reaction of sulfuric acid with hematite (Fe2O3) , a common mineral, produces iron (III) sulfate and water, as follows: .
Fe2O3 + H2SO4 > Fe2(SO4)3 + H2O
When this equation is balanced, it will contain the following term(s) with the appropriate coefficient: (a) 3 H2SO4 (b) 2 Fe2O3 (c) Fe2(SO4)3 (d) 4 H2O
8. In a recent year, electric power plants in the US consumed 1.14 x 1011 kg of natural gas. Assume that natural gas is entirely methane, CH4, and calculate the number of hydrogen atoms in this amount. (a) 4.56 x 1011 atoms H (b) 1.71 x 1037 atoms H (c) 2.84 x 1013 atoms H (d) 4.28 x 1036 atoms H If you could also explain how you get the answer that would be really helpful
Answers: 1
Chemistry, 22.06.2019 02:30
When svante arrhenius first proposed his acid-base theory, he was a doctoral candidate. his professors thought his ideas were unfounded. within a decade, the arrhenius theory of acid-base was widely accepted and praised within the scientific world. arrhenius defined acids as compounds having ionizable hydrogen and bases as compounds with ionizable a) barium. b) hydronium. c) hydroxide. d) oxygen.
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Chemistry, 22.06.2019 08:30
What are the first three quantum numbers for the electrons located in subshell 2s?
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Chemistry, 23.06.2019 07:30
In the diagram here that represents the reaction, which reactant, a or b, is the limiting reagent?
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Chemistry, 23.06.2019 13:30
What happens to acetone molecules when you add heat to a beaker of liquid acetone?
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4. 1.00 mole of Ca(NO3)2 contains the same mass of N as 1.00 mole of NaNO3. True or False
5. The th...
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