which of these is an example of a physical change?\no sugar dissolving in warm water\no iron rusting in the…
which of these is an example of a physical change?\no sugar dissolving in warm water\no iron rusting in the presence of moist air\no wood burning in the presence of oxygen\no baking soda reacting with acid to form a gas
Answer
Brief Explanations:
A physical change does not result in a new substance. When sugar dissolves in warm water, it is just dispersed in the water and 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