Chemical Reactions Review 1 Question Preview (ID: 45322)


Review Of Beginning Vocabulary. TEACHERS: click here for quick copy question ID numbers.

Everything around us is made of ___.
a) compounds
b) atoms
c) mixtures
d)

If a chemical reaction occurs what kind of change MUST happen?
a) physical
b) chemical
c) technological
d)

EVERY chemical reaction produces ___ substances that are different than the substances that started the reaction.
a) same
b) four
c) new
d)

Observable changes that indicate a chemical reaction occurred include 2 types. Name the 2 types.
a) changes in properties and changes in energy
b) changes in materials and changes in temperature
c) changes in size and changes in volume
d)

Reactions that ABSORB energy and DECREASE temperature are called ____
a) ENDOTHERMIC
b) EXOTHERMIC
c) MESOTHERMIC
d)

Reactions that RELEASE energy and INCREASE temperature are called
a) ENDOTHERMIC
b) EXOTHERMIC
c) INTROTHERMIC
d)

If two chemicals are mixed together and BUBBLES are produced, what does this indicate?
a) That a new substance is NOT formed.
b) That gases are produced
c) That soap was put into the reaction.
d)

Milk and Vinegar are mixed together. Small solids are produced. We call these solids ____
a) Precipitation
b) exotherms
c) Precipitates
d)

Is the melting of wax a chemical reaction?
a) Claim: Yes melting wax is a chemical reaction because the wax changes into a liquid
b) Claim: No the melting wax is NOT a chemical reaction because the melting wax is just a change in state.
c)
d)

The beginning temperature of a beaker of liquid is 86 degrees. Then another liquid is added and the temperature drops to 80 degrees. What kind of energy change is this?
a) ENDOTHERMIC
b) EXOTHERMIC
c)
d)

Play Games with the Questions above at ReviewGameZone.com
To play games using the questions from above, visit ReviewGameZone.com and enter game ID number: 45322 in the upper right hand corner or click here.

TEACHERS / EDUCATORS
Log In | Sign Up / Register

Help / Support / FAQ




Gaming Links