Lab 2 Flashcards
1
Q
Classes of Chemical Reaction
A
- Combination
- Decomposition
- Single Displacement
- Double Displacement
2
Q
Evidences of Chemical Reactions
A
- Change in color
- Formation of bubbles
- Formation of precipitates
- Release or absorption of energy
2
Q
At least 2 reactants and only 1 product
A
Combination Reaction
3
Q
Red → Red and Blue → Red
A
Acid
4
Q
Red → Blue and Blue → Blue
A
Base
5
Q
1 reactant and at least 2 products
A
Decomposition Reaction
6
Q
Is the rapid decomposition of hydrogen peroxide mixed in soap and coloring
A
Elephant’s Toothpaste Experiment
7
Q
chemicals that are used to increase the rate of reaction
A
catalysts
8
Q
sweet, caramel aroma
A
caramelization
9
Q
toasty
A
maltol
10
Q
nutty
A
furan
11
Q
buttery
A
diacetyl
12
Q
fruity
A
ethyl acetate
13
Q
a more active element displace a less active element from its compound
A
Single Displacement Reaction
14
Q
metals and other elements more active than H, such as Zn, when combined with strong acids form _______
A
hydrogen gas
