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WhAT IS A CHANGE WHERE THE STARTING SUBSTANCES CHANGE INTO NEW SUBSTANCES?
chemical property :)
Cheating the crossword? the answer is physical.
Physical changes do not produce new substances
a "chemical reaction".
It is called a CHEMICAL change.
Chemical change forms a new substance from another substance.
Chemical reaction; this involves the breaking and forming of bonds between atoms which will change the properties of the substance (ex: rusting)
it results in pysicalreaction