Atoms, Elements, Molecules and Compounds Practice exercise 4

Which statement correctly describes a compound?

Which statement correctly describes a compound?  (1 mark)

Which statement correctly describes a compound?  (1 mark)

Which statement correctly describes a compound?  (1 mark)

Look at the image below. Which box represents a compound?

Look at the image below. Which box represents a compound?   (1 mark)                           A                     B                     C                  D                 

Look at the image below. Which box represents a compound?   (1 mark)                           A                     B                     C                  D                 

Look at the image below. Which box represents a compound?   (1 mark)                           A                     B                     C                  D

Which statement best defines a molecule in terms of elements and compounds?

Which statement best defines a molecule in terms of elements and compounds?  (1 mark)

Which statement best defines a molecule in terms of elements and compounds?  (1 mark)

Which statement best defines a molecule in terms of elements and compounds?  (1 mark)

How does the atomic structure of an element differ from that of a compound?

How does the atomic structure of an element differ from that of a compound?   (1 mark)

How does the atomic structure of an element differ from that of a compound?   (1 mark)

How does the atomic structure of an element differ from that of a compound?   (1 mark)

How does the atomic structure of an element differ from that of a compound?   (1 mark)

Which of the following best explains why pure oxygen is classified as an element?

Which of the following best explains why pure oxygen is classified as an element?  (1 mark)

Which of the following best explains why pure oxygen is classified as an element?  (1 mark)

Which of the following best explains why pure oxygen is classified as an element?  (1 mark)

Which of the following best explains why pure oxygen is classified as an element?  (1 mark)

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

A student tries to break down pure iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

The image below shows a student heating pure iron in a science lab. The student tries to break down the iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

The image below shows a student heating pure iron in a science lab. The student tries to break down the iron into simpler substances using heat but fails. What conclusion can be made about iron?(1 mark)

The image below shows a student heating pure iron in a science lab. The student tries to break down the iron into simpler substances using heat but fails. What conclusion can be made about iron? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound? (1 mark)

During a science experiment, students burn hydrogen gas in oxygen and form water (H₂O). Which of the following BEST explains why water is classified as a compound?  (1 mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?.(1mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?.(1mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?.(1mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?.(1mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings?.(1mark)

Scientists studying air samples in Kenya discover molecules of oxygen (O₂) and carbon (IV) oxide (CO₂). Which of the following statements is TRUE based on their findings? (1mark)

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?.(1 mark)

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?.(1 mark)

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?.(1 mark)

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?.(1 mark)

A family in Kisumu uses table salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or compound?.(1 mark)

The image below shows table salt used in a Kisumu kitchen. A family uses this salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or a compound? (1 mark)

The image below shows table salt used in a Kisumu kitchen. A family uses this salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or a compound? (1 mark)

The image below shows table salt used in a Kisumu kitchen. A family uses this salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or a compound? (1 mark)

The image below shows table salt used in a Kisumu kitchen. A family uses this salt when cooking. Table salt is made of sodium and chlorine combined. Is table salt an element or a compound? (1 mark)

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called?

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called?.(1 mark)

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called?.(1 mark)

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called?.(1 mark)

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called?.(1 mark)

In a science lab, a student notices that some atoms cannot exist alone but must join to form small groups. These groups can exist separately. What are these groups called? (1 mark)