2. How can a gas at room temperature (like oxygen) become solid?

The physical state of the material depends on the intermolecular interaction between hydrogen moleculesand here this is only a fairly weak dispersion force, which is reasonable because the molecule is certainly non-polar, and is not many electron. ... Dihydrogen, dinitrogen, and dioxygen are ALL room temperature gases

Explanation: Several of the nonmetals are gases in their elemental form. Elemental hydrogen (H, element 1), nitrogen (N, element 7), oxygen (O, element 8), fluorine (F, element 9), and chlorine (Cl, element 17) are all gases at room temperature, and are found as diatomic molecules (H2, N2, O2, F2, Cl2).

answer; i believe that the correct answer is (light);

the "power" of a lens is its resolution power, or its ability to distinguish between to closely located points. with the low power lens, it is likely you will see the rough form of the hay and maybe some movement of dots around the hay. however, when observed with the high power lens, the detailed features of the hay become visible and the microbes being grown are more clearly visible.

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