Question

1. choose all that apply.

select the five postulates proposed by dalton.
atoms cannot be created or destroyed (law of conservation of mass) nor can they be divided into smaller particles.
atoms cannot be combined, separated, or rearranged in chemical reactions.
all matter is composed of extremely tiny particles called atoms.
all matter can be divided infinitely and still be that matter.
all atoms of all elements are identical. atoms do not differ from other atoms of different elements.
atoms of one element can combine in whole - number ratios with atoms of other elements to form compounds (law of multiple proportions).
atoms can be combined, separated, or rearranged in chemical reactions. these reactions cause one or more substances to be converted into different forms.
all atoms of a given element are identical. they have the same mass. however, atoms differ from other atoms in different elements by size, mass, and chemical properties.

Explanation:

• "Atoms cannot be created or destroyed (law of conservation of mass) nor can they be divided into smaller particles.": This aligns with Dalton's atomic theory which was based on the law of conservation of mass and the idea that atoms were indivisible at that time (though later we know atoms can be further divided into sub - atomic particles, but this was Dalton's postulate).
• "All matter is composed of extremely tiny particles called atoms.": This is a fundamental postulate of Dalton's atomic theory.
• "Atoms of one element can combine in whole - number ratios with atoms of other elements to form compounds (law of multiple proportions).": Dalton's theory incorporated the law of multiple proportions, which is about the combination of atoms in whole - number ratios.
• "Atoms can be combined, separated, or rearranged in chemical reactions. These reactions cause one or more substances to be converted into different forms.": Chemical reactions involve the rearrangement of atoms according to Dalton's theory.
• "All atoms of a given element are identical. They have the same mass. However, atoms differ from other atoms in different elements by size, mass, and chemical properties.": Dalton postulated that atoms of the same element are identical and different from atoms of other elements.

The statement "Atoms cannot be combined, separated, or rearranged in chemical reactions" is incorrect as per Dalton's theory (atoms are combined, separated, or rearranged in chemical reactions). The statement "All matter can be divided infinitely and still be that matter" is not a postulate of Dalton's atomic theory. The statement "All atoms of all elements are identical. Atoms do not differ from other atoms of different elements" is incorrect as Dalton said atoms of different elements are different.

Answer:

• Atoms cannot be created or destroyed (law of conservation of mass) nor can they be divided into smaller particles.
• All matter is composed of extremely tiny particles called atoms.
• Atoms of one element can combine in whole - number ratios with atoms of other elements to form compounds (law of multiple proportions).
• Atoms can be combined, separated, or rearranged in chemical reactions. These reactions cause one or more substances to be converted into different forms.
• All atoms of a given element are identical. They have the same mass. However, atoms differ from other atoms in different elements by size, mass, and chemical properties.