Science year 10 end of year exam

Pregunta	Respuesta
Acid+Metal=> (Eg. Nitric acid+ magnesium=>)	Salt+hydrogen (gas) (Magnesium nitrate+ hydrogen)
Acid+carbonate=> (Eg. Sulfuric acid + calcium carbonate=>)	Salt +water+carbon dioxide (Calcium sulfate+ Water+ carbon dioxide)
What is the word equation for neutralisation?	Acid+Base (alkali)=> salt +water (Eg. Hydrochloric acid+ sodium hydroxide=> sodium chloride+ water)
What is the word equations for the combustion of an element?	Element+ oxygen=> ______ oxide (Eg. Magnesium+ oxygen= magnesium oxide)
What is the word equations for the combustion of a carbon-based fuel?	Fuel+ oxygen=> carbon dioxide+ water (Wood, coal, petrol, diesel, natural gas, propane)
What is the word equations for the corrosion(rusting) of iron?	Metal+ oxygen=> metal oxide (Eg. Iron + oxygen=> iron oxide)
What is decomposition, and what is the equation for it?	The breaking down of a compound into 2 or more simple substances. AB=> A+B (Eg. Water=> hydrogen gas + oxygen gas)
What is the equation for precipitation?	AB+CD=> AC+BD (Eg. Sodium chloride +silver nitrate => silver chloride + sodium nitrate)
What is a trait of hydrogen in a chemical reaction?	Makes a 'pop' when ignited
What is a trait of oxygen in a chemical reaction?	Can cause a glowing splint of wood to burst into flames
What is a trait of Caron dioxide in a chemical reaction?	Reactions with lime water and makes it go 'milky'

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