Hydrogen Gas Converts Tungsten Oxide to Tungsten Metal

question 16

Multiple Choice

Hydrogen gas converts tungsten oxide to tungsten metal.Hydrogen (H₂) is a(n)

• A)acid.
• B)base.
• C)oxidizing agent.
• D)reducing agent.

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Joint Frequency Distribution

A statistical tool that shows how often pairs of variables occur together in a given dataset.

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A type of table in a matrix format that displays the (multivariate) frequency distribution of the variables.

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