Achemical change is a change in the properties of matter (2 points) that does not change the identity of the substance where no new chemical bonds are formed that only changes the size where chemical bonds are broken and new bonds are formed

Dumbledore decides to gives a surprise demonstration. he starts with a hydrate of na2co3 which has a mass of 4.31 g before heating. after he heats it he finds the mass of the anhydrous compound is found to be 3.22 g. he asks everyone in class to determine the integer x in the hydrate: na2co3·xh2o; you should do this also. round your answer to the nearest integ