Which of the following describes a chemical...

Question 1 / 270705eccef9ebacbc34ba4d465f1

Question 1 of 270705eccef9ebacbc34ba4d465f1

Which of the following describes a chemical gas?

Question 1 of 27070

Which of the following describes a chemical gas?

🔍 Key Concepts

• Difference between elemental gases (like nitrogen, oxygen) and chemical classifications based on carbon and hydrogen • Meaning of hydrocarbon (compounds of only carbon and hydrogen) • How adding other atoms (like chlorine, fluorine, oxygen) changes the type of chemical compound

💭 Think About

• Look at which options mention only carbon and hydrogen versus carbon, hydrogen, and other atoms. Which of these sounds like a special class of organic chemicals? • Consider whether a “chemical gas” in hazardous materials contexts is limited to hydrocarbons only, or can include compounds with other elements. • Which option sounds too restrictive to cover the many different industrial gases carried by ships (e.g., chlorine, ammonia, etc.)?

✅ Before You Answer

• Identify which choice best fits common hazardous gases carried on tankers (think: do they all contain only carbon and hydrogen?). • Check which answer describes a broad enough definition to include inorganic gases (like chlorine) and organic gases (like propane). • Eliminate any option that is really just defining hydrocarbons, not all chemical gases.

Question 1 of 27070

Which of the following describes a chemical gas?

substance whose molecules not exceed 4 carbon molecules

gas that has molecules but not carbon or hydrogen

substance whose molecules contain only carbon and hydrogen

substance whose molecules contain other atoms as well as carbon and hydrogen

Question 1 / 270705eccef9ebacbc34ba4d465f1

Question 1 of 270705eccef9ebacbc34ba4d465f1

Which of the following describes a chemical gas?

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Question 1 of 27070

Which of the following describes a chemical gas?