<em>In toxicology, the median lethal dose, LD₅₀, LC₅₀ or LCt₅₀ is a measure of the lethal dose of a toxin, radiation, or pathogen. The value of LD₅₀ for a substance is the dose required to kill half the members of a tested population after a specified test duration.</em>
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Answer:
D they are quickly replenished. I get this question a good bit so i know the answer.
Explanation:
Answer:
The first one is Propane
The second one is HEPTANE
The third one is <em>octane</em>
<em>The</em><em> </em><em>4th</em><em> </em><em>is</em><em> </em><em>butane</em>
<em>the</em><em> </em><em>5th</em><em> </em><em>is</em><em> </em><em>decane</em><em> </em>
I hope this is it
NO2^-+H^+==HNO2
