One. "New substance, new properties!" Two. "Can't go back — it's a chemical change!" Three. "When bubbles, color changes, or heat show up — chemistry is happening!" Four. "Burn it, rust it, react it — it's chemically changed forever!" Five. "Cooking = chemistry! Delicious reactions in action!" Six. "Chemical changes break and form bonds — it's molecular makeover time!" Seven. "Not just a new look — it's a whole new substance!" | The City Grammar H/S School Shahdadpur

17. A : In a chemical substance, the elements are always presen... | Filo

Assertion: In a chemical substance the elements are always pres... | Filo

Chemical Compound | Definition, Types & Examples