CHEM 121 MODULE 6 EXAM|| QUESTIONS AND ANSWERS - PORTAGE LEARNING.

M6: Exam - Requires Respondus LockDown
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 Due No due date




 Points 100




 Questions 10
 Time Limit 120 Minutes




 Requires Respondus LockDown Browser


Attempt History
Attempt Time Score

LATEST Attempt 1 104 minutes 95 out of 100
Score for this quiz: 95 out of 100
Submitted Feb 11 at 2:31am
This attempt took 104 minutes.

1

You may find the following resources helpful:
Scientific Calculator (Links to an external site.)
Periodic Table
Equation Table

, Identify each of the three compounds below as ACID, BASE or SALT on the basis of their
formula and explain your answer.
(1) MgCl2


(2) HClO4

(3) Cu(OH)2
Your Answer:
1 - salt because metal and nonmetal


2 - acid because of H, and poly atomic group


3 - base because of OH and metal
1. MgCl2 Salt Contains Metal (Mg) + Nonmetal (Cl)


2. HClO4 Acid Contains H + Polyatomic group (ClO4)


3. Cu(OH)2 Base
Contains Metal (Cu) + OH Polyatomic group

2

You may find the following resources helpful:
Scientific Calculator (Links to an external site.)
Periodic Table
Equation Table


For the Brønsted-Lowry acid base reactions shown below, list the stronger acid, stronger
base, weaker acid and weaker base in the answer blanks provided: