Green Unit (5) Flashcards
1
Q
5 signs of a chemical reactions
A
Color change
Gas production
Precipitate forms
Light/heat produced
Odor produced
2
Q
Exothermic
A
Reaction that releases energy as heat
3
Q
Endothermic
A
Reaction that absorbs energy as heat
4
Q
Individual atom
A
Atom
5
Q
Covalent substance
A
Molecule
**includes diatomic molecules
6
Q
Ionic substance
A
Unit
7
Q
2 or more reactants combine to form a single product
A
Synthesis
8
Q
Only one product
A
Synthesis
9
Q
A + B -> AB
A
Synthesis
10
Q
A single reactant breaks down into 2 or more products
A
Decomposition
11
Q
AB -> A + B
A
Decomposition
12
Q
A single element replaces another in a compound
- cation replaces cation
- anion replaces anion
A
Single replacement
13
Q
A + BC -> B + AC
A
Single replacement
14
Q
Reactants: one element and one compound
A
Single replacement
15
Q
Single element must be more active (higher on the activity series)
A
Single replacement
