Properties of Water and Biochemistry

Elements that occur in nature that have the same atomic number but different mass because they contain a different number of neutrons. 

• Atom

• Molecule

• Compound

• Isotope

The smallest part of an element that has physical and chemical properties

• Electron

• Proton

• Atom

• Molecule

A small negatively charged particle found orbiting the nucleus of an atom. 

• Electron

• Proton

• Neutron

• Element

Which of these structures are negatively charged particles?

• Proton

• Nucleus

• Neutrons

• Electrons

What is the molecular structure of water?

• 1 Hydrogen

  2 Oxygen

• 1 Hydrogen

  1 Oxygen

• 2 Hydrogen

  2 Oxygen

• 2 Hydrogen

  1 Oxygen

Which side of the water molecule has a slightly positive charge?

• Oxygen

• Hydrogen

• It's all positive

• It's all negative

Which side of the water molecule has a slightly negative charge?

• It's all negative

• It's all positive

• Hydrogen

• Oxygen

What kind of Bond does a water molecule have?

• Ionic

• Polar Covalent

• Non Polar Covalent

• Metallic

What is the boiling point of water?

• 0 C

• 100 C

• 200 C

• 50 C

What is the freezing point of water?

• 0 C

• 100 C

• 200 C

• 50 C