What is the average energy of the
molecules in a substance is …?
100
The taste of acids.
What is sour?
100
The substance that produces H+ ions in a solution.
What is acid?
100
Lemons have a pH of 2.5 which makes them a(n) _______.
What is an acid?
100
An insulator is a material that does not conduct energy well. The best insulator out of the following: glass window pane, sheet of plywood, or a piece of steel plating.
What is SHEET OF PLYWOOD
200
The movement of water which is being heated over a stove.
What is a convection current?
200
The taste of bases.
What is bitter?
200
Type of ions bases produce.
What are OH- ions (or hydroxide ions)?
200
Neutral pH.
What is 7?
200
Feeling warmth when you sit in a sunny place transfers energy through this process.
What is RADIATION?
300
Direct contact transfer of thermal energy.
What is conduction?
300
If blood has a pH of 7.2 it is a(n) ________.
What is a base?
300
The charge of an ion produced in an acid solution.
What is positive?
300
Lye has a pH of 13.8 and can cause burns to the skin. Lye is a(an) _______.
What is a base?
300
Heat flows from _______objects to _______ones until they reach the same temperature.
What is warmer to colder?
400
Thermal energy goes out from a central point.
What is radiation?
400
What you get when you mix an acid and base together.
What is salt and water?
400
The charges an ion can have.
What is positive or negative.
400
pH stands for “potential for” or “parts of” _______.
What is hydrogen?
400
This change of state takes place when a gas loses energy.
What is condensation.
500
The process which is the result of the motion of particles in a fluid (gas or liquid).
What is convection?
500
Organic substances that change color in the presence of an acid or a base.
What is an indicator?
500
Solutions with ions that react with acids or bases to lessen their effects.
What are buffers?
500
(Gastric) Stomach juices have a pH of 1.0 is and is considered a (strong or weak) acid or base.
What is a strong acid?
500
Inside a room, the air is often warmer near the ceiling than near the floor. This process accounts for this difference in temperature.