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Based on Table G, which sample, when added to 100. grams of water and thoroughly stirred, produces a heterogeneous mixture at 20.°C?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
An atom of which element bonds with an atom of hydrogen to form the most polar bond?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
Which two elements are present in this mixture?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
Which electron configuration represents the electrons of an atom in an excited state?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
What is a chemical name of the compound CuS?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
What is the mass of N2(g) produced when 1.0 gram of H2(g) completely reacts with 15.0 grams of NO(g) to produce 9.0 grams of H2O(g)?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
How many milliliters of 1 M HCl(aq) must be diluted with water to make exactly 500 mL of 0.1 M HCl(aq)?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
What is the approximate mass of an atom that has 10 electrons, 10 protons, and 9 neutrons?
G and E
20. g of KI
100 mL
iodine
14.0 g
copper(I) sulfide
20. u
2-7-3
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