Properties
More Properties
Matter
Water Science
Water Quality and pH
100
This property of water allows a pin to float on the surface of water.
What is cohesion at the surface (surface tension)?
100
This is the number of hydrogen atoms in a water molecule..
What is two?
100

How do we calculate the density of an object or substance?

What is divide it mass by its volume?

100

A water molecule forming hydrogen bonds with a substance that is not water is called

Adhesion

100

This is the value for a neutral pH

What is 7?

200
This property of water demonstrates the attraction of one water molecule to another.
What is cohesion?
200
This is the number of oxygen atoms in a water molecule.
What is 1?
200

In the lab, what two experiments did we perform to measure the relative surface tension of the solutions?

What are the penny and paperclip experiments?

200

What is the partial charge of the hydrogen atom in water?

What is positive?

200
Excessive fertilizer can cause a population explosion in algae known as what?

What is an algal bloom?

300

This property of water allows water to "climb" up substances.

What is capillary action? (combo of cohesion and adhesion)

300

This is the term for a molecule without charges

What is non-polar?

300

This is the term for a substance that "loves" water.

What is an hydrophilic? 

300

This is the partial charge of the oxygen atom in water

What is positive?

300

How would a waterfall influence dissolved oxygen levels?

What is increase?

400
Water molecules tend to "stick" together because of positively and negatively charged "ends" of the molecule. So, we say it is what kind of molecule?
What is a polar molecule?
400

This type of bond between oxygen and hydrogen is a result of an unequal sharing of electrons.

What is polar covalent bond

400
This is formed when two or more atoms combine. For example, water is one.
What is a molecule?
400

This substance is less dense as a solid than a liquid.

What is water?

400

How would bacterial decomposition influence dissolved oxygen levels in a body of water?

What is reduce?

500
This property describes tightness across the surface of water, caused by the polar molecules pulling on one another.
What is surface tension?
500

Water resists temperature change, because it has a high _______ __________ ________

What is specific heat capacity?

500

Which types of molecules are Polar molecules such as water are able to dissolve?

What are polar molecules?

500

These bonds form between polar water molecules

What are hydrogen bonds?

500

A pH value of 3 would be considered an acid, base, or neutral solution?

What is acidic pH?

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