Select all that apply: the melting points of organic compounds are usually lower than those of inorganic compounds. the boiling points of organic compounds are usually lower than those of inorganic compounds. the flammability of organic compounds is usually lower than that of inorganic compounds.

The melting points of organic compounds are usually lower than those of inorganic compounds.

The boiling points of organic compounds are usually lower than those of inorganic compounds.

Explanation:

Organic compounds are compounds of carbon with exception of simple ones like oxides, carbides and carbonates. Inorganic compounds are other compounds excluding organic compounds.

Inorganic compounds due to the nature of their bonds typically have higher melting and boiling points compared to organic compounds.

Organic compounds are also highly flammable and would easily burn compared to inorganic ones.

i think it is d. e because the next one is igneous.

c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.