Soil Horizons/Soil Texture
NPK
Basic Lewis Dot Structures
Ions
Ionic Bonding
100

Which soil horizon is rich in organic matter?

O Horizon

100

What does N stand for in fertilizers?

Nitrogen

100

What invisible shape should you follow to create a Lewis Dot Structure?

Square

100

What is a cation?

Positively charged ion

100

Ionic bonds form between two nonmetals.

False

200

What horizon is primarily composed of clay and mineral deposits?

B Horizon

200

What does P stand for in fertilizers?

Phosphorous

200

Do the dots in a Lewis structure represent the atom's protons?

No

200

What is an anion?

Negatively charged ion

200

When is your final for Chemistry?

Thursday or Friday

300

What is used to classify soil texture?

The Soil Triangle

300

Is a high nitrogen content in fertilizer ideal for fruiting plants?

No

300

How many valence electrons does Helium have?

2

300

Metals typically form cations by losing electrons.

True

300

How would you transfer electrons between Ca+2 and Cl-1?

CaCl2

400

Which type of soil texture has the best water retention and aeration balance?

Loamy Soil

400

Potassium helps plants to kill ______________ and improve drought resistance.

diseases

400

The Lewis Dot Structure for Oxygen shows ____________ Valence electrons.

6

400

Calcium losing 2 electrons.

Ca2+

400

What method do you use to transfer electrons in ionic bonding?

Criss-Cross

500

What are the three primary soil particles that determine soil texture?

Clay, Silt, and Sand

500

What does K stand for in fertilizers?

Potassium

500

What is the purpose of a Lewis Dot Structure?

To show the valence electrons for each element.

500

Oxygen gaining 2 electrons.

O2-

500

What happens to electrons during ionic bonding?

They will either gain or lose an electron depending on which ion needs to be stable.