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Matter Quiz

"Matter" Module

Visionlearning - an interactive practice exercise

(1) Joseph Priestley discovered:

(a) America

(b) hydrogen

(c) mercury

(d) oxygen

(2) Who proposed the first atomic view of matter?

(a) Democritus

(b) Empedocles

(c) Lavoisier

(d) Priestley

(3) The ancient Greeks believed that matter was composed of four basic materials. Which one of the following was not one of the four?

(a) earth

(b) fire

(c) gold

(d) water

(4) Which one of the following is not part of Dalton's atomic theory?

(a) Atoms change into other atoms in chemical reactions

(b) Atoms of different elements have different properties

(c) Atoms of the same element have the same chemical properties

(d) Matter is composed of atoms

(5) A substance that cannot be broken down by chemical means into simpler substances is called a(n):

(a) compound

(b) element

(c) mixture

(d) solid

(6) Which one of the following statements concerning the relationship between the number of elements and the number of compounds is correct?

(a) The number of compounds is much larger than the number of elements

(b) The number of elements and compounds is approximately the same

(c) The number of elements is much larger than the number of compounds

(d) The number of elements must equal the number of compounds

(7) The number of known elements at this time is approximately:

(a) 100

(b) 116

(c) 50

(d) infinite

(8) Which one of the following symbols represents an element?

(a) CO

(b) He

(c) HF

(d) NO

(9) Which one of the following symbols represents a compound?

(a) Co

(b) CO2

(c) He

(d) N

(10) Substances A and B combine chemically to form C. Substance C must be:

(a) a compound

(b) a mixture

(c) a solution

(d) an element

(11) Although all parts of Dalton's atomic theory are important, which one of the postulates is crucial to explain the observations summarized by the Law of Definite Proportions?

(a) Atoms are very small

(b) Atoms chemically combine with other atoms in fixed, whole-number ratios

(c) Atoms of the same elements have the same properties

(d) Matter is composed of atoms

(12) No matter how much extra oxygen is available, 12 grams of carbon always combines with 32 grams of oxygen. This best illustrates the law of:

(a) conservation of energy

(b) conservation of mass

(c) definite proportions

(d) multiple proportions

(13) 12 grams of carbon react with 32 grams of oxygen to form exactly 44 grams of carbon dioxide. This is a good example of:

(a) Democritus' theory

(b) Priestley's experiments

(c) the law of conservation of mass

(d) the law of multiple proportions

(14) Who first proposed the law of definite proportions?

(a) Dalton

(b) Empedocles

(c) Priestley

(d) Proust


External Resources

Memoir of John Dalton, and History of the Atomic Theory up to His Time

The Development of Modern Chemistry

Other Recommended Products

Visionlearning Resources

Glossary

Quotes

By convention there is color, by convention sweetness, by convention bitterness, but in reality there are atoms and space.

-Democritus
460-371 b.c.



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