What is the molarity of an HCl solution of unknown concentration, if 100.0 mL of it was required to completely react with 10.0 g of NaOH ? HCl(aq) + NaOH(aq) NaCl(aq) + H2O(l)

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 traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

How would you reduce the volume of gas