When you blow dry your hair
physical or chemical change? and briefly explain why
you forgot to dry the bread knife when you washed it and reddish brown spots appeared on it
physical or chemical change? and briefly explain why
you decide to toast a piece of bread but leave it in the toaster too long. the bread is black and the kitchen is full of smoke.
physical or chemical change? and briefly explain why
baking powder reacts to release carbon dioxide bubbles. the carbon dioxide bubble cause the dough to rise.
physical or chemical change? and briefly explain why
you take out your best silver spoons and notice they are very dull and have some black spots.
physical or chemical change? and briefly explain why
in a fireworks show the fireworks explode giving off heat and light.
physical or chemical change? and briefly explain why