Vhegg A student accidentally reversed the order of solvents A, B, and C in the column chromatography and used the acetone FIRST and then the remaining solvents. Predict what will happen to the student’s ability to separate compounds. Explain your reasoning.

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

The number of moles of a given mass of a substance can be found without knowing its molecular formula or molar mass. true false

If two identical atoms are bonded,what kind of molecule is formed