A&P1 Ch2 Flashcards

Front

What is matter?

Back

Anything that has mass or occupies space; three states, liquid, gas, solid

Front

What is chemistry?

Back

Study of matter and its interactions

Front

What is an atom?

Back

Smallest unit of matter that retains original properties

Front

What are the four major elements that make up a human body?

Back

Hydrogen, oxygen, carbon, and nitrogen (also 7 mineral elements and 13 trace elements)

Front

What does the image here depict? Ex: blood cells are suspended in plasma, water after you boil potatoes or pasta

Back

Suspension: particles large and usually visible settle out. Mixture containing two or more components

Front

What does the image here depict? Ex: Milk, Jell-O

Back

Colloid(s): two distinct components; particles small and not visible, do not settle out. Two or more components, small, evenly distributed particles

Front

What does this image depict? Ex: sweet tea (adding sugar while its still hot)

Back

Solution(s): Particles extremely small and not visible; do not settle out, one component dissolves in the other component. Two or more components. Solute - substance dissolved

Solvent - substance that dissolves solvent

Front

What does this image depict?

Back

Formation of a covalent bond.

Compound - formed when two or more atoms from DIFFERENT elements combine by chemical bonding

Front

What is a molecule?

Back

Formed by chemical bonding between two or more atoms of the same element

Front

Number of electron pairs shared: One (single bond). Molecular structure shown in image

Back

Molecular formula: CH4, methane, structural formula shown in image