Question

chemistry worksheet
name:
elements, compounds & mixtures
instructions

1. element
2. compound
3. mixture of elements

review the following diagrams below carefully. you will be classifying each of the pictures below by placing the correct labels in the blanks below:

1. mixture of compounds
2. a mix of elements and compounds

each circle represents an atom and each different colour represents a different kind of atom. if two atoms are touching, they are bonded together.

Explanation:

Step1: Recall definitions

An element consists of only one - type of atom. A compound has two or more different types of atoms bonded together. A mixture of elements has different non - bonded elements. A mixture of compounds has different compounds. A mix of elements and compounds has both non - bonded elements and compounds.

Step2: Analyze first diagram

All the molecules are the same and each molecule has two different types of atoms bonded. So it is a compound.

Step3: Analyze second diagram

There are two types of non - bonded atoms. So it is a mixture of elements.

Step4: Analyze third diagram

There are two types of molecules (compounds). So it is a mixture of compounds.

Step5: Analyze fourth diagram

There are two types of molecules, both are compounds. So it is a mixture of compounds.

Step6: Analyze fifth diagram

There are only non - bonded atoms of one type. So it is an element.

Step7: Analyze sixth diagram

There are only identical molecules with two different types of atoms bonded. So it is a compound.

Step8: Analyze seventh diagram

There are non - bonded atoms of one type and molecules (compounds). So it is a mix of elements and compounds.

Step9: Analyze eighth diagram

There are two types of non - bonded atoms and some compounds. So it is a mix of elements and compounds.

Step10: Analyze ninth diagram

There are only identical molecules with two different types of atoms bonded. So it is a compound.

Answer:

1. Compound
2. Mixture of Elements
3. Mixture of Compounds
4. Mixture of Compounds
5. Element
6. Compound
7. A mix of Elements and Compounds
8. A mix of Elements and Compounds
9. Compound