Starr Biology Chemistry of Life

The part of the atom that determines how the atom behaves chemically is the

• electron

• proton

• neutron

• nucleus

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2

Hydrophillic

• polar or ionic that loves water

• nonpolar that hates water

• nonpolar that loves water

• polar or ionic that hates water

Hydrophobic

• nonpolar that hates water

• polar that loves water

• ionic that loves water

• ionic that hates water

Cohesion

• property of water that explains why water is attracted to other polar molecules

• property of water that explains why water is attracted to other water molecules

• property of water that explains why water defies gravity and travels up surfaces such as paper

Tags

NGSS.HS-ESS2-5

Hydrogen bond

• weak attraction between H and another electronegative atom that has a slight positive charge like O and N

• covalent bond between carbons

• weak attraction between two hydrogens

• weak attraction between the O and the H within one water molecule

An electron is

• positive

• negative

• neutral

Surface tension

• strong intermolecular force due to hydrogen bonds between the water molecules

• property of water that allows water to become attracted to other polar or ionic molecules

• property of water that allows water to become attracted to other water molecules

Dehydration synthesis or condensation

• process that joins two monomers while releasing a water molecule

• process that joins two monomers while adding a water molecule

• process that breaks a polymers while releasing a water molecule

• process that breaks a polymers while adding a water molecule

Hydrolysis

• Process of breaking a polymer while adding a water molecule

• Process of breaking a polymer while releasing a water molecule

• Process of forming a polymer while releasing a water molecule

True/False: Water is less dense as a solid

• True because the hydrogen bonds expand between the water molecules and form a crystal

• False because ice floats on water

• True because the covalent bonds expand between the water molecules and form a crystal

Tags

NGSS.HS-ESS2-5