TE21-Extra Credit

Front

How many Hydrogen atoms are present in 2H₂O?

Back

There are 4 Hydrogen atoms present.

Front

In which direction will water flow across a semipermeable membrane if there are solutes on Side A?

Back

Water will flow to Side A.

Front

Which group has a higher melting point: Group 1 or Group 2?

Back

Group 2 has a higher melting point.

Front

What can be concluded from a graph showing solubility of salt in water at different temperatures?

Back

The solubility of the salt increases with temperature.

Front

The Periodic Table arranges elements in order by what?

Back

Increasing Atomic Number.

Front

What is a solute?

Back

A solute is a substance that is dissolved in a solution.

Front

What is a solvent?

Back

A solvent is a substance that dissolves a solute, forming a solution.

Front

What is the definition of melting point?

Back

The melting point is the temperature at which a solid becomes a liquid.

Front

What happens to the solubility of most solids in water as temperature increases?

Back

The solubility of most solids increases with temperature.

Front

What is the difference between a compound and a mixture?

Back

A compound is a substance formed when two or more elements are chemically bonded, while a mixture is a combination of two or more substances that are not chemically bonded.