The nucleus of an atom consists of: * Electrons only
Protons only
Protons and neutrons
Protons and electrons

For each of the following mixtures decide if filtering would be suitable to separate the substances. explain your answers. oil in water sugar in water sand in water chalk in water tea leaves in a cup of tea

Which statement can best be concluded from the ideal gas law?

Answer asap : ( a. how does mucus prevent the entry of pathogens? b. describe two ways white blood cells protect us from pathogens.