Properties of Water quiz

Why does ice float?

• As water freezes, it expands and it is less dense.

• As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.

• As water freezes, air becomes trapped between the hydrogen bonds of water molecules.

• As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.

Water is polar because...

• The unequal sharing of electrons gives the water molecule a slight negative charge and a slight positive charge

• The molecule has two poles, at which the it is colder than other regions of the molecule.

• Their is equal sharing of electrons

• The water molecule is neutral.

Attractions between the slight positive of one water molecule and the slight negative of another water molecule are called

• Covalent bonds

• Ionic bonds

• Polar bonds

• Hydrogen bonds

Which types of compounds dissolve easily in water?

• Polar and Nonpolar
• Polar and Ionic
• Nonpolar and Ionic
• Covalent and Nonpolar

Tags

NGSS.HS-PS1-1

Water is a universal solvent because it...

• It can be found anywhere

• It freezes when it gets cold

• floats when frozen

• Dissolves most substances

Water molecules are attracted to other kinds of molecules because of the property.

• Cohesion

• Adhesion

• Surface Tension

• Universal Solvent

What two elements make up water?

• Helium and oxygen
• Hydrogen and oxygen
• helium and carbon
• oxygen and carbon

Tags

NGSS.MS-PS1-1

Water is a polar or “charged” molecule. Which of the statements below correctly explains the polarity of the water molecule.

• The atoms in the water molecule are held together by ionic bonds.

• The atoms in the water molecule are held together by covalent bonds.

• The water molecule has a slight negative charge on the “oxygen end” and a slight positive charge on the “hydrogen end.”

• The water molecule has a slight negative charge on the “hydrogen end” and a slight positive charge on the “oxygen end.”

Many of the unique properties of water can be attributed to the hydrogen bonding that occurs BETWEEN individual water molecules. A hydrogen bond is formed between two water molecules when:

• The negative oxygen end of one water molecule is attracted to the positive hydrogen end of another water molecule.

• The negative hydrogen end of one water molecular is attracted to the positive oxygen end of another water molecule.

• A covalent bond is formed between the negative and positive poles of the water molecule.

• An ionic bond is formed between the negative and positive poles of the water molecule.

The attraction that causes water and other liquids to form drops on thin films is called ________________. This is also water’s ability to be attraction to other water molecules.

• adhesion

• capillary action

• cohesion

• carbohydrates