What is your most convincing piece of evidence?

Covalent network solids typically have melting points and boiling points. the chemical formula of a network solid indicates in the molecule.

Which metal exist in liquid state and can be cut with knife ?

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon