Copper(II) chloride

High school (ages 12+)
Science & Technology

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/copperii-chloride

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the chemical formula?CuCl2
2. What is the anhydrous form?Yellowish-brown solid
3. What does copper(II) chloride look like when it has no water?The dry form, called anhydrous CuCl2, is a yellowish‑brown solid that likes to soak up water from the air.
4. How does copper(II) chloride change when it gets water?When it absorbs water it turns into a blue‑green crystal called the dihydrate, and heating it back removes the water to return to the yellowish‑brown form.

Inorganic Compound: A chemical compound that lacks carbon-hydrogen bonds, often derived from mineral sources.
Hygroscopic: Tending to absorb moisture readily from the surrounding air.
Orthorhombic Crystal System: A crystal system characterized by three unequal axes at right angles to each other.
Co-catalyst: A substance that enhances the activity of a primary catalyst in a chemical reaction.