Which of the following is NOT an example of a chemical change? A) A hand warmer heats up after you squeeze it.

B) Water evaporates into steam.

C) An antacid tablet neutralizes stomach acid.

D) Baking soda and vinegar foam and erupt like a volcano.

The electron configurations of two different atoms are shown below. each yellow electron has a charge of 1−, and the net charge of each nucleus is shown. these atoms will combine with bond. a. an ionic b. a positive c. a negative d. a covalent plzzz mee with !

Which of the following units is not an official si unit? mole liter kilogram ampere

What statement goes against the kinetic theory of gases