1) What is the role of salt in a saline solution or a solution of saltwater? a) Solution b) Solute c) Solvent d) Mixture 2) What do we have after combining two chemical elements? a) Combination b) Composition c) Mixture d) Compound 3) Which scientist is credited with the invention of the periodic table? a) Mendeleev b) Rutherford c) Newton d) Darwin 4) Which gas accounts for the largest part of the air? a) Carbon b) Hydrogen c) Nitrogen d) Oxygen 5) What is the chemical name of the compound NaCl? a) Sodium chloride b) Potassium chloride c) Hydrogen peroxide d) Iodine

Bestenliste

Visueller Stil

Einstellungen

Vorlage ändern

Soll die automatisch gespeicherte Aktivität wiederhergestellt werden?