Which of the following are indicators of a chemical change? Select all that apply. color change temperature change precipitate formation gas formation cutting a solid into smaller pieces

Does anhydrous salt contain any water?

What was Nicholas Steno's contribution to geology?

How many valence electrons does a neutral lanthanide atom have?

When placed in a freezer, liquid water turns into ice. What best describes this change?

Which of the following statements best describes the difference between hydrogen fuel cells and hydrogen fusion? A. More energy is produced per reaction in a fusion reaction than in a fuel cell B.

The metric unit of force is the A. gram. B. kilogram. C. nanometer. D. newton.

Why can endothermic reactions be spontaneous? g?

What requirements must a molecule meet in order to be considered nonpolar?

Why is water (H2O) considered the "universal solvent"?

Which notations represent hydrogen isotopes?