What is the relationship between the concentration of a gas in air in mg/m3 and ppmv at standard temperature and pressure?
What will be an ideal response?
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Dedicated cutting torches are usually shorter than combination torches.
Answer the following statement true (T) or false (F)
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What is the amperage of a 1,200-watt heater on a 120-volt circuit? Use the formula W = VA.
What will be an ideal response?
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What is the lowest common denominator for 
?
Fill in the blank(s) with the appropriate word(s).
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List at least five major economic and/or technological developments of the 1920s. Select the three most significant ones and explain your choices.
What will be an ideal response?
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