An element: May have 2 or more differing atoms Is a substance that cannot be dec

Question

An element: May have 2 or more differing atoms Is a substance that cannot be decomposed by chemical means into a simpler substance May have 2 or more chemical properties None of the above A & B but not C What is a broad generalization based the results of many experiments? Scientific law Hypothesis Theory None of the above All of the above Which of the following statements are not true about compounds Compounds can be broken into elements by chemical changes Compounds contain 2 or more different elements Elements that make up a compound have a fixed ratio All of the above None of the above

Explanation / Answer

8)

a is false, this is a compound

b, this is true, since it is elemental

c, false

d, no, since b is true,

e , not a

9)

theotry, by definition, you need plenty of experiments, but that will not prove a law. A hypothesis is done by idea and observations only

10)

a is true, since compounds are at least 2 or more elements

b is true, since those

c true,

all of above are true, choose D

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