Biology Chapter 2

Front

How many dots does the electron-dot structure of carbon have?

Back

4

Front

What are attractions between water molecules called?

Back

Hydrogen bonds

Front

What is the best explanation for a meniscus of water in a capillary tube?

Back

Adhesive property is stronger than cohesive.

Front

How is an orbital best described?

Back

The volume of space in which electrons are most often found.

Front

What happens to a calcium atom with two electrons in its outer shell?

Back

It loses these two electrons and becomes a positively charged ion.

Front

What is the definition of covalent bonds?

Back

Covalent bonds are chemical bonds formed by the sharing of electrons between atoms.

Front

What is the definition of ionic bonds?

Back

Ionic bonds are formed when one atom transfers electrons to another atom, resulting in oppositely charged ions.

Front

What is surface tension?

Back

Surface tension is the cohesive force between liquid molecules at the surface of a liquid.

Front

What is the difference between adhesive and cohesive properties?

Back

Adhesive properties refer to the attraction between different substances, while cohesive properties refer to the attraction between similar molecules.

Front

What is the octet rule?

Back

The octet rule states that atoms tend to gain, lose, or share electrons to achieve a full outer shell of eight electrons.