Chemistry, 05.11.2020 20:50 ElizabethF
1 Mg + 2HCl → 1MgCl2 + 1H2
What volume of hydrogen at STP is produced from the reaction of 50.0 g of Mg and the
equivalent of 75 g of HCI?
Which is the limiting reactant?
Answers: 3
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Choose an equation that represents an enzyme-catalyzed reaction. (a) enzyme + substrate → enzyme-substrate complex (b) enzyme + substrate ←−→ enzyme + products (c) enzyme + substrate ←−→ enzyme-substrate complex → enzyme + products (d) enzyme + substrate ←−→ enzyme-substrate complex → enzyme-substrate complex + products
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He table below gives the atomic mass and relative abundance values for the three isotopes of element m. relative abundance (%) atomic mass (amu) 78.99 23.9850 10.00 24.9858 11.01 25.9826 what is the average atomic mass (in amu) of element m? 2.86 5.36 24.30 24.98
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Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.
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1 Mg + 2HCl → 1MgCl2 + 1H2
What volume of hydrogen at STP is produced from the reaction of 50.0 g o...
Mathematics, 03.07.2020 22:01
Mathematics, 03.07.2020 22:01