Which elements are metalloids? check all that apply. boron tungsten aluminum bismuth silicon tellurium tin?

Metalloids among the option would be aluminum, boron, silicon, and tellurium.

Metalloids are elements within the periodic table that have intermediate properties between metals and non-metals.

In some cases, these elements are referred to as semimetals.

Examples of metalloids include boron, silicon, tellurium, germanium, arsenic, antimony. Others include aluminum, astatine, polonium, etc.

More on metalloids can be found here: link

if you mean hydrogen and oxygen then water is the product