43 particle diagram chemistry
4.3 -- Representations of Reactions (drawing particle diagrams of the two reactions, and then critiquing class particle diagrams for different limiting and excess reactants) 4.4 -- Physical and Chemical Reactions (justifying why this is a chemical reaction) 4.5 -- Stoichiometry (determining amount of reactants needed -- both mass and mL based ... Which particle diagram represents molecules of only one compound in the gaseous phase? A)A and B B)A and C C)B and C D)B and D 8.Which two particle diagrams represent mixtures of diatomic elements? Key = an atom of an element an atom of a different element O Key = atom of element X atom of element Z . Key 13. The diagram below represents the starting materials (reactants) and ending materials (products) after a change has taken place. Was the change physical or chemical? Explain. 14. Given the particle diagram representing four molecules of a substance: Which particle diagram best represents this same substance after a physical chang...