Elephants' Toothpaste

Click on the correct answer



1 What is characteristic of any compound which is a peroxide?
It contains an oxygen-oxygen bond
It contains a hydrogen-oxygen bond
It contains a single oxygen
It contains a hydrogen-hydrogen bond
It is exceptionally stable

2 Hydrogen peroxide H-O-O-H decomposes into
oxygen gas and hydrogen gas
oxygen gas and water
hydrogen gas and water
water only
three different products

3 What is the result when a gas is mixed with a detergent?
foam
slime
clay
paint
glue

4 A kind of chemical reaction in which one substance breaks apart to form two or more substances is known as a
combination reaction
single replacement reaction
double replacement reaction
decomposition reaction
splitting reaction

5 "Decomposition" in the sense of chemical reactions means
combining
smelling
breaking apart
turning sour
digesting

6 More pressure built up in the flask with the smaller hole and
the foam shot higher
the foam did not shoot as high

7 The gas that was trapped in the detergent was
hydrogen peroxide
oxygen gas
water
benzoyl peroxide
decomposed

8 A gas
occupies more volume than the liquid from which it is formed
is lighter than the same amount of solid
can exist only at temperatures above room temperature
wants to fill the entire room if the bottle it is in is opened
can foam if a detergent is present

9 Which of the following are examples of peroxides?
water
oxygen gas
benzoyl peroxide
hydrogen peroxide
detergent

10 In order to make the reaction occur
Amber simply added hydrogen peroxide to the flask
Amber simply added hydrogen peroxide and detergent to the flask
The flask containing the hydrogen peroxide and the detergent was treated with a catalyst
The reaction had to be heated
The flask had to be shaken