Dalton's Ideas

Front

What is Dalton's Atomic Theory?

Back

Dalton's Atomic Theory states that matter is made up of tiny, indivisible particles called atoms, all atoms of a given element are identical, and atoms combine in simple whole-number ratios to form compounds.

Front

What is the Law of Conservation of Mass?

Back

The Law of Conservation of Mass states that mass is neither created nor destroyed in a chemical reaction; the total mass of reactants equals the total mass of products.

Front

What is the Law of Definite Proportions?

Back

The Law of Definite Proportions states that a chemical compound always contains its component elements in fixed ratio by mass.

Front

What is the Law of Multiple Proportions?

Back

The Law of Multiple Proportions states that when two elements combine to form more than one compound, the ratios of the masses of the second element that combine with a fixed mass of the first element are small whole-number ratios.

Front

If 10.00 g of rust contains 3.00 g of oxygen, how much oxygen is in 20.00 g of rust?

Back

6.00 g

Front

What does it mean for atoms to be indivisible?

Back

Indivisible means that atoms cannot be broken down into smaller particles through chemical means.

Front

How do compounds form according to Dalton's ideas?

Back

Compounds form when two or more different types of elements combine in small whole-number ratios.

Front

What is an example of a compound formed by carbon and oxygen?

Back

Carbon dioxide (CO2) is a compound formed by carbon and oxygen.

Front

If a compound breaks down into 2.68 g of oxygen and ___ g of carbon, and the total mass is 3.68 g, what is the mass of carbon?

Back

1.00 g

Front

When calcium reacts with chlorine, what is the total mass of the product if 20.0 g of calcium is used?

Back

55.50 g