A170.00 g sample of an unidentified compound contains

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

Which atom or ion is the largest? a. k b. k+ c. ca d. ca2+ e. li

Which statement describes james chadwick’s discovery.