The Atom Worksheet Template (With Answers) (Page 2 of 2) in pdf

The Atom Worksheet Template (With Answers) Page 2

c. H

d. NaOH

O is a binary compound compsed of the two elements oxygen and hydrogen.

7. When sugar is dissolved in water, the resulting solution is classified as a

a. Homogeneous mixture

b. Heterogeneous mixture

c. Homogeneous compound

d. Heterogeneous compound

When sugar is dissolved in water it produces a homogeneous mixture; the dissolved sugar is

uniformly spread out in the water. The same with dissolved salt.

8. Compare the properties of elements and compounds; give two example of each.

Elements and compounds are both pure substances. An element though cannot be broken down into

simpler components since it is the simplest form of matter. Compounds can be broken down into its

elements.

Examples of elements: helium, oxygen, neon, lithium

Examples pf compounds, sugar, salt, rust

9. Why does a magnet pick up iron (Fe) in a mixture of iron (Fe) and sulfur (S), but not in the compound

iron sulfide (FeS)?

In a mixture of iron and sulfur the two elements are not chemically combined. Iron retains all its

properties and so does sulfur. They can be separated using a magnet. When iron and sulfur are

chemically combined to form the compound iron sulfide, iro sulfide has a different set of properties

compared to just iiorn or just sulfur.

The Atom Worksheet Template (With Answers) Page 2