Web(a) True, the wax meting is a physical process, while combustion of wax is chemical process, (b) True (c) True, salty water of sea causes faster rusting of iron. (d) False, stretching of rubber band is a physical change. Question 12: Melting of wax is a change where a solid changes to liquid stawNQive one more such change which you observe in ... WebA physical B chemical C Both A and B D None of the above Medium Solution Verified by Toppr Correct option is A) No new substances are formed when wax melts. This is a physical change. However, if the wax burns, it is a chemical change. The question here is associated with melting, and so the answer is 'physical' change. Was this answer …
Is melting of chocolate a physical change or chemical change?
WebScore: 4.4/5 (54 votes) . Physical changes don't destroy your sample or make it into something new. ... Crumpling paper, getting a haircut, dissolving salt in water, melting … WebPhysical Properties and Changes. Physical properties are inherent characteristics that describe matter. They include characteristics such as size, shape, color, mass, density, hardness, melting and boiling points, and conductivity. Some physical properties, such as density and color, may be observed without changing the phase of the matter. office of the chief financial officer doe
What Happens to Candle Wax When a Candle Burns
WebWhen we burn a candle, wax melts and hence the physical state of wax changes from solid to liquid. Thus, it is a physical change. As the wick containing wax burns to … WebAnswer (1 of 4): Melting of wax, by itself, involves a change of state from solid to liquid. When the physical state of a substance changes, no new products are formed. Hence, … Web3 dec. 2024 · Assertion (A) : Burning of a candle is considered a physical as well as chemical change. Reason (R): Melting of wax is a physical change melted wax turns … my current apps