The Law of Constant Composition States That __________

question 58

Multiple Choice

The law of constant composition states that __________

• A) compounds such as NO₂ and SO₂ have identical chemical properties.
• B) for a given compound, the elements forming the compound always react in the same proportions.
• C) nitrogen and oxygen can combine to form NO or NO₂.
• D) elements do not always combine in the same proportion to give the same compound.
• E) only one compound can be produced when two elements combine.

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Definitions:

Time Series

Sequenced data points collected or recorded at time intervals, often analyzed to identify trends, cyclical patterns, or to forecast.

Random Variation

Fluctuations in data or experimental results due to unpredictable changes in variables or conditions.

Time Series

A sequence of data points collected or recorded at successive points in time, often analyzed to identify trends, cycles, and seasonal variations.

Three-period Moving Averages

A method used in time series analysis to smooth out data by calculating the average of any three consecutive periods to predict trends or identify patterns.