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?
O They are each compounds. Each of the compounds is made of atoms. All of the atoms are made
O They are each made of matter. Some are compounds and some are elements. They all contain at
O They are all elements. Some contain molecules of the same type of atom. Some contain different
O They are each made of matter. Some are compounds made of one type of element. Some are pur

Answer 1

The scientist is using elements and compounds in their investigation: water, silver, carbon dioxide, and oxygen gas.

Step-by-step explanation:

The group of statements that best describe all of the materials the scientist is using in the investigation is: They are all elements. Some contain molecules of the same type of atom. Some contain different atoms.

In this investigation, water is an example of a compound made of two different elements, hydrogen and oxygen. Silver is an element, consisting of only silver atoms. Carbon dioxide is a compound made of carbon and oxygen atoms. Oxygen gas, on the other hand, consists of molecules with two oxygen atoms.

Learn more about Elements and compounds in a scientific investigation