A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas. Which group of statements best describe all of the materials he is using in the investigation?

A- They are each compounds. Each of the compounds is made of atoms. All of the atoms are made of matter.

B- They are each made of matter. Some are compounds and some are elements. They all contain atoms.

C- They are all elements. Some contain molecules of the same type of atom. Some contain different types of atoms.

D- They are each made of matter. Some are compounds made of one type o

Question

A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas. Which group of statements best describe all of the materials he is using in the investigation?

A- They are each compounds. Each of the compounds is made of atoms. All of the atoms are made of matter.

B- They are each made of matter. Some are compounds and some are elements. They all contain atoms. 

C- They are all elements. Some contain molecules of the same type of atom. Some contain different types of atoms.

D- They are each made of matter. Some are compounds made of one type o

anonymous · Answer

B- They are each made of matter. Some are compounds and some are elements. They all contain atoms.