Water chemistry

How do covalent bonds form?

• Donating & receiving valence e- between atoms.
• Opposite slight charges attract each other between compounds.
• Scientists are still not sure how they form.
• Sharing valence e- between atoms.

Tags

NGSS.HS-PS1-2

molecules of a particular substance sticking together

• cohesion
• adhesion

molecules sticking to a surface of another substance

• cohesion
• adhesion

Tags

NGSS.MS-PS2-5

the amount of energy that it takes to raise 1 gram of a substance by 1 degree celsius

• density
• pH
• specific heat capacity
• polar molecule

A molecule that has a positive end and a negative end

• polar molecule
• pH
• universal solvent
• surface tension

the ability of water to dissolve more compounds than any other substance on earth

• surface tension
• pH
• universal solvent
• capillary action

A water strider can walk on top of water

• universal solvent
• capillary action
• pH
• surface tension

Plants move groundwater up their trunks to their highest leaves

• adhesion
• capillary action
• density
• polar molecule

water forming a dome in an over-filled glass

• cohesion
• adhesion

Water and oil are placed in the same vessel and stirred. The reason that oil and water will not mix is because

• water is polar and oil is nonpolar

• both water and oil are nonpolar

• both water and oil are polar

• water is nonpolar and oil is polar