How many moles of 0 atoms are in 7.75 mil of h202, or hydrogen peroxide? the tolerance is +/-2%

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

Why does a red shoe appear red in daylight

Answer explain why it is not possible to deduce a complete order of reactivity.