Water, Chemical of Life

What is the chemical formula of water?

• H2O

• HHH

• HOHO

• HO

What 3 chemical properties of water makes it so important for life?

• it floats when it freezes, keeping water from freezing fully in winter

• its really good at dissolving stuff, making it perfect for doing chemical reactions in

• waters adhesion and cohesion makes it naturally good at forming a cell

• it is very light

What is a hydrogen bond?

• when hydrogen forms a chemical

• when a hydrogen within a water molecule is attracted to a positively charged atom in another molecule

• a type of bomb

• when hydrogen is more reactive than normal

cohesion is the property of water where it?

• sticks to other things spreading out over hydrophilic surfaces

• sticks to itself forming beads or droplets of water

Adhesion is the property of water where?

• sticks to other things spreading out over hydrophilic surfaces

• sticks to itself forming beads or droplets of water

when water moves up a small tube as what happens in plant roots this is known as

• hydrophobia

• water magnetism

• capillary action

• thirsty plant

what is a solvent?

• something that can dissolve other things

• something that solves the problem of chemical energy

• something that provides proteins to a cell

• something that freezes less dense than it is as a liquid

Why is water a good solvent?

• its hydrogen bonds

• because its light

• because its tasty

• its oxygen atom

Which of the following substances repels water that is touching it?

• Hydrophilic

• Hydrophobic

Who discovered the composition of water?

• Cavendish

• Bohr

• Einstein

• Darwin