CHEM-010-02: Preparatory Chemistry Week 02: Homework 02 | Latest Summer 2025 | Attempt Score 15 / 15 - A | Harford Community College.

Tahanney Schmitt - 202530.30755:CHEM-010-02: Preparatory Chemistry - Harford Community College 7/16/25, 2:19 PM




2025 Summer: Week 02: Homework 02




Your work has been saved and submitted

Written Jul 16, 2025 2:12 PM - Jul 16, 2025 2:18 PM • Retaken Attempt 2 of 3




Attempt Score - A
Overall Grade (Highest Attempt) - A




Show All Questions


Question 1 Correct on previous attempt(s) 0..25 points

An ion is:




https://harford.brightspace.com/d2l/lms/quizzing/user/quiz_submi…=0&isprv=0&dnb=0&cfql=0&cft=ad&fromQB=0&d2l_body_type=1&ou=31802 Page 1 of 43

,Tahanney Schmitt - 202530.30755:CHEM-010-02: Preparatory Chemistry - Harford Community College 7/16/25, 2:19 PM




only a group of atoms that has a charge.

an atom or a group of atoms that has a charge.

only a single atom that has a charge.

Question 2 Correct on previous attempt(s) 0..25 points

A cation:
Select 3 correct answer(s)

has less protons inside the nucleus than electrons outside the nucleus.

is formed by a gain of electrons.
has more protons inside the nucleus than electrons outside the
nucleus.

has an overall positive charge.

is formed a loss of electrons.

has an overall negative charge.


Question 3 Correct on previous attempt(s) 0..25 points

An anion:

is formed by a loss of electrons and has an overall negative charge.

is formed by a gain of electrons and has an overall positive charge.

is formed by a gain of electrons and has an overall negative charge.

is formed by a loss of electrons has an an overall positive charge.


Question 4 Correct on previous attempt(s) 0..5 points
https://harford.brightspace.com/d2l/lms/quizzing/user/quiz_submi…=0&isprv=0&dnb=0&cfql=0&cft=ad&fromQB=0&d2l_body_type=1&ou=31802 Page 2 of 43

,Tahanney Schmitt - 202530.30755:CHEM-010-02: Preparatory Chemistry - Harford Community College 7/16/25, 2:19 PM




The Co3+ cation has:




27 protons, 32 neutrons, and 30 electrons.

27 protons, 31 neutrons, and 24 electrons.

27 protons, 31 neutrons, and 27 electrons.

27 protons, 32 neutrons, and 24 electrons.

Question 5 Correct on previous attempt(s) 0..75 points

Given the following information, complete the blanks in the table.

Z=


https://harford.brightspace.com/d2l/lms/quizzing/user/quiz_submi…=0&isprv=0&dnb=0&cfql=0&cft=ad&fromQB=0&d2l_body_type=1&ou=31802 Page 3 of 43

, Tahanney Schmitt - 202530.30755:CHEM-010-02: Preparatory Chemistry - Harford Community College 7/16/25, 2:19 PM




A= 79
Charge 2-
Number of
?
protons
Number of
?
neutrons
Number of
?
electrons




___34___ ___34___ ___45___ ___36___

Question 6 Correct on previous attempt(s) 0..25 points

Based on its location on the periodic table, strontium (Sr), has what ion
charge?
https://harford.brightspace.com/d2l/lms/quizzing/user/quiz_submi…=0&isprv=0&dnb=0&cfql=0&cft=ad&fromQB=0&d2l_body_type=1&ou=31802 Page 4 of 43