Answered

Westonci.ca is the premier destination for reliable answers to your questions, brought to you by a community of experts. Ask your questions and receive precise answers from experienced professionals across different disciplines. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

Select the correct answer.

What is the chemical formula of calcium chloride?
A. [tex]CaCl[/tex]
B. [tex]Ca_2Cl_2[/tex]
C. [tex]Ca_2Cl[/tex]
D. [tex]CaCl_2[/tex]

Sagot :

GinnyAnswer
To determine the correct chemical formula for calcium chloride, let's consider the valences of the elements involved:

1. Calcium (Ca) is in Group 2 of the periodic table, which means it has a valence of +2.
2. Chlorine (Cl) is in Group 17 of the periodic table, which means it has a valence of -1.

When calcium (Ca) bonds with chlorine (Cl) to form calcium chloride:

- One calcium atom, with a +2 charge, needs to be balanced by two chloride ions, each with a -1 charge.
- The formula thus needs to reflect that two Cl atoms are required to balance out the charge of one Ca atom.

Therefore, the correct chemical formula is [tex]\( CaCl_2 \)[/tex].

Thus, the correct answer is:
D. [tex]\( CaCl_2 \)[/tex]
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. We hope you found this helpful. Feel free to come back anytime for more accurate answers and updated information. We're glad you chose Westonci.ca. Revisit us for updated answers from our knowledgeable team.