Unit 1 Exam

Adhesion

________- when two different molecules form hydrogen bonds with each other.

Cohesion

________- When two of the same molecules form a hydrogen bond together (water collecting in drops)

high electronegativity

The bond between oxygen and hydrogen is polar because oxygen has a(n) ________ than Hydrogen.

Hydrophobic

________- dosent mix with water nonpolar.

main elements

Water is composed of 2 ________, Oxygen, and Hydrogen In a 1: 2 ratio.

Hydrogen bonds

________ in ice are more "ordered "forming a hexagonal shape with a hole in the middle, making ice less dense.

Hydrophilic

________- mixs with water polar.

Capillary action

________- adhesion and cohesion working together.

Oxygen

________ is the negative side and Hydrogen is the positive side.

Acid

________ is any substance that increases the H+ concdntration of a soulution.

Heat

________ is absorbed when hydrogen bonds break and realesed when the form.

Large bodies of water

________ absorb heat from warmer air and realease heat to cooler air.

Hydrogen

The bond type is covalent between the ________ and Oxygen atoms because they share electrons.

Ocean acidifiction

________ is when the co2 from the atmosphere is absorbed by the ocean and taken in to creat carbonic acid.

PH of a solution

The ________ is notated as: pH=- log [H+]

Waters cohesive properteies

________ allow it to resist temputure change.

Hydrogen bonds

________ between water molecules lead to surface tension.

Hydrogen bonds

________ are weak bond interactions between the negative and positive regions of two separate molecules.

Water is composed of 2 main elements, Oxygen, and Hydrogen In a 1

2 ratio

Cohesion

When two of the same molecules form a hydrogen bond together (water collecting in drops)

Adhesion

when two different molecules form hydrogen bonds with each other

Capillary action

adhesion and cohesion working together

Hydrophobic

dosent mix with water nonpolar

Hydrophilic

mixs with water polar

Base

any substance that reduces the H+ concentration of a solution

Buffers resist changes in concentration of H+ and OH

in a solution '

The PH of a solution is notated as

pH = -log [H+]