metals and non metals reacting with oxygen Flashcards
what do metals do when they react with oxygen in the air
the react with oxygen in the air to make metal oxides
e.g magnesium + oxygen»_space;»»» magnesium oxide
what do non metas do when they react with oxygen
they react with oxygen in the air to produce non - metal oxides
e.g. carbon + oxygen»_space;»»» carbon dioxide
what is synthesis
when complex molecules are formed from similar compounds or elements
what is decomposition
when complex molecules are are broken down into simpler compounds or elements
thermal decomposition
compounds spit into there elements when heated
electrolysis
when a substance is decomposed using electricity
what is an element
substance made out of only one type of atom
what is a compound
when two or more compounds are chemically bonded together
what is a mixture
2 or more substances that are mixed together that are not chemically bonded together
what are the differences between a mixture and compuound
compounds are chemically joined together where as mixtures are not
what is a catalyst
a substance that speeds up the rate of a chemical reaction
what is the conservation of mass
mass can neither be created nor destroyed which means the sum of mass of the reactants is equal to the sum of mass of the products in a chemical reaction
what is combustion reaction
a complete oxidation that causes fire
what is a word equation for combustion
hydrocarbon + oxygen»_space;»> carbon monoxide + water
give an example of a synthesis word equation
zinc + sulphur»_space;»> zinc sulphide
