Question

which are true based on daltons atomic theory. select all that apply. atoms of oxygen and those of hydrogen can combine to make water. a piece of pure gold is made up of really small pieces called atoms. because they are both composed of oxygen and hydrogen, water and hydrogen peroxide are two names for the same thing. all the atoms of a pure piece of gold are the same. the atoms of gold are different from the atoms of aluminum. the atoms of gold are the same as the atoms of silver. the atoms of oxygen and the atoms of hydrogen can combine to make hydrogen peroxide.

Explanation:

Dalton's Atomic Theory states that elements are made of tiny particles called atoms, atoms of the same element are identical, and atoms of different elements are different. Also, atoms can combine in simple whole - number ratios to form compounds. Water is formed by the combination of hydrogen and oxygen atoms. A pure substance like gold is made of identical gold atoms. Hydrogen peroxide and water, although both composed of hydrogen and oxygen, have different atom combinations and are not the same.

Answer:

• Atoms of oxygen and those of hydrogen can combine to make water.
• A piece of pure gold is made up of really small pieces called atoms.
• All the atoms of a pure piece of gold are the same.
• The atoms of gold are different from the atoms of aluminum.
• The atoms of oxygen and the atoms of hydrogen can combine to make hydrogen peroxide.