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100

A halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually.

What is pH Indicator?

100

The joining of two different substances due to attractive forces that hold them.

What is Adhesion?

100

The nucleus of a ____ atom separated from its accompanying electron.  Is made up of a particle carrying a unit positive electric charge, called a proton.

What is Hydrogen Ions?

200

This substance is made up of 2 Hydrogen and 1 Oxygen

What is Water?

200

This has 6 valence electrons and needs 2 more electrons to become even with the outer shell.

Hint (adding electrons is basically subtraction. So the charge is -2)

What is Oxygen's Charge

200

The ability of a liquid to flow in narrow spaces without the assistance of, or even in opposition to, external forces like gravity.

What is Capillary Action?

300

The tendency of fluid surfaces to shrink into the minimum surface area possible.

What is Surface Tension

300

A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

What is Hydrogen Bonds?

300

A substance that is neither acidic nor basic.

What is Neutral? (Neutrality)

400

The state of steady internal physical and chemical conditions maintained by living systems.

What is Homeostasis?

400

The action or property of like molecules sticking together, being mutually attractive.

What is Cohesion?

400

Molecular ions with the formula OH-, formed by the loss of a proton from a water molecule.

What is Hydroxide Ions?

500

s made up of a nucleus with charge+1, and a single electron. Therefore, the only positively charged ion possible has charge +1.

What is Hydrogen's Charge?

500

Separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.

What is Polarity?