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lesson pretestMultiple Choice

Pretest

Question 1 • Chemistry

Using the activity series provided. Which reactants will form products? Na is greater than Mg comma Mg is greater than Al comma Al is greater than Mn comma Mn is greater than Zn comma Zn is greater than Cr comma Cr is greater than Fe comma Fe is greater than Cd comma Cd is greater than Co comma Co is greater than Ni comma Ni is greater than Sn comma Sn is greater than Pb comma Pb is greater than cap h comma cap h is greater than Sb comma Sb is greater than Bi comma Bi is greater than Cu comma Cu is greater than Ag

Answer
A
Fe plus Cu open paren NO sub 3 close paren sub 2 rightarrow
B
Fe plus Al sub 2 cap o sub 3 rightarrow
C
Ni plus NaCl rightarrow
D
Ag plus NaNO sub 3 rightarrow

Explanation

In a single-replacement reaction, a metal can replace another metal in a compound only if it is higher in the activity series. Fe is above Cu, so Fe can replace Cu in Cu(NO₃)₂ and form Fe(NO₃)₂ and Cu. Fe is below Al, and Ag and Ni are below Na, so the other reactions will not form products by this rule.

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