What is the relationship between the kinetic energy of particles and the forces of attraction between particles? Please give a full and complete answer

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

Of the groups of elements below, which are most likely to gain electrons to become anions? a. alkali metal b. boron group c. halogen d. transition metal

Which of the dna typing techniques do you think you would choose if you had to analyze a dna sample? why?