CaO + 3C 2CaC+C0 AH = +464,8 kJ Is this reaction endothermic or exothermic? Explain your reasoning,

100mg magnesium reacts with 20ml of 1.0m hcl

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?