which of these is an example of a physical change? sugar dissolving in warm water iron rusting in the…
which of these is an example of a physical change? sugar dissolving in warm water iron rusting in the presence of moist air wood burning in the presence of oxygen baking soda reacting with acid to form a gas
Answer
Brief Explanations:
A physical change does not result in a new substance. Sugar dissolving in water is a physical change as sugar molecules disperse in water but no new chemical substance is formed. Iron rusting, wood - burning, and baking soda reacting with acid are chemical changes as new substances (rust, carbon - dioxide and other products, and carbon - dioxide gas respectively) are formed.
Answer:
sugar dissolving in warm water