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AGHS- Atomic Theory

Last updated over 5 years ago

3 questions

1

1

1

Question 1

1.

Which of Dalton's five principles still apply to the structure of an atom?

All matter is composed of extremely small particles called atoms, which cannot be subdivided, created, or destroyed.

Atoms of a given element are identical in their physical and chemical properties.

Atoms of different elements differ in their physical and chemical properties.

Atoms of different elements combine in simple whole-number ratios to form compounds.

In chemical reactions, atoms are combined, separated, or rearranged but never created, destroyed, or changed.

Question 2

2.

What law is described by the fact that carbon dioxide consists of 27.3% carbon and 72.7% oxygen by mass?

law of definite proportions

law of conservation of mass

law of multiple proportions

Question 3

3.

What law is described by the fact that the ratio of the mass of oxygen in carbon dioxide to the mass of oxygen in carbon monoxide is 2:1?

law of definite proprtions

law of conservation of mass

law of multiple proportions