Quiz: IC1 Learning Set 2

2. Ammonia was one of the liquids that turned the indicator paper a different color without touching it. Look at the chemical formula for ammonia. How many atoms of nitrogen (N) are in one molecule of ammonia?

3. How are elements organized on the periodic table?

• By their mass
• By their symbols, alphabetically
• By their properties
• By the date they were discovered

4. What are examples of properties of matter?

• color and texture
• malleability and hardness
• states of matter and volume
• all of the above

5. Elements and molecules are different because they are made of different types of...

6. Your class is studying metallic elements. Your teacher gives you two metal strips. You need to determine if they are the same element or not. What are two different properties that would help you determine whether the strips are the same?

• Mass and color
• Malleability and hardness
• Shape and melting point
• Volume and malleability

7. What would it look like if she drew a model of the molecules in the distilled (pure) water bottle using a “special instrument” that would allow her to see the smallest parts of water?

• It would be a mixture of many different molecules.
• It would contain only water molecules.
• It would contain only water atoms.
• It would be a mixture of hydrogen atoms and oxygen atoms.

8. How would this compare to water that Cho collected from a pond near her house?

• The water in the bottle would have minerals in it just like the pond water.
• The water in the bottle would have a different type of water molecule in it because it is safe to drink.
• The water in the bottle would only have water molecules and the pond water would have many other things like minerals and tiny living things in it.
• The water in the bottle would be the same as the pond water.

9. Calcium and nitrogen are both elements. What makes one element different from another element?

• They are different colors and sizes.
• They have different properties and are found in different places.
• They have different properties and are made of different types of atoms.
• They are made of different types of atoms and have the same properties.

10. How many atoms of nitrogen are in hydrazine?

11. How many atoms of hydrogen are in hydrazine?