Terminology
Bonds
pH & Water
Subatomic Particles
Grab Bag
100

The smallest particle of an element

atom

100

Bond formed by sharing of electrons

Covalent

100

Water molecules are attracted to each other. This is known as ...

Cohesion

100

Uncharged

Neutron

100

Number of Carbon atoms in CO2

One

200

The smallest particle of a compound

molecule

200

Bond formed by the transfer of electrons

Ionic

200

What atoms form a water molecule?

2 hydrogen, one oxygen

200

Charged in the nucleus

Proton

200

Number of Nitrogen atoms in Ca(N03)2

2

300

Composed of atoms from two or more different elements

Compound

300

Unequal sharing of electrons in the covalent bonds in water makes water ...

Polar (different charges at ends)


300

pH is a measure of the concentration of ...

Hydrogen ions

300

Negatively charged

Electron

300

How many product molecules in

6CO2 + 6H2O → C6H12O6 + 6O2

7

400

The name for the shorthand way of writing a compound (H2O for instance)

Chemical Formula

400

Bond between water molecules

Hydrogen

400

Which form of water is the densest; water vapor, liquid water, or ice?

Liquid water.

400

The two types of subatomic particles in the nucleus

Protons and neutrons

400

A solution is composed of two parts. What are the two parts?

Solute and solvent

500

Forms of an element that differ in mass

Isotopes

500

Number of electrons in a triple covalent bond

6

500

A difference of 1 on the pH scale is a difference of how many times in the strength of an acid?

Ten times (10X)

500

The particle so small we can ignore its mass

Electron

500

When unstable isotopes break down, what type of energy is released?

Radioactive (radiation)

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