Question

by burning a piece of paper a wooden piece a wet cloth and iron rod what you can understand write in your own words ​

Answer 1

if we burn all of them....there would a chemical change...

by burning a piece of paper and wood. we get ash......which is the product.....and we give heat to the iron , it will melt and this is a physical change which is reversible.....

thanks...

Marks- is BRAINLIEST

Answer 2

Answer:some items burnt and give lot of ash and some are not burnt

Explanation:the items which have low ignition temperature and high calorific value that catches fire easily. Some natural resources leave lot of ash like - wood, paper etc,, some are burnt completely leave few amount of ash after burning like - petrole, kerosene, diesel, LPG,CNG etc,, .when iron is heated it is melted this is physical change. When wood is burnt it is chemical change.