6.1 + 6.2 Flashcards Preview

Chem 100 > 6.1 + 6.2 > Flashcards

Flashcards in 6.1 + 6.2 Deck (10):
1

what is a chemical change?

a substance is converted to a new substance

2

how does one recognize a chemical change? (4 signs)

change in color,
formation of solid,
formation of bubbles,
heat is produced/absorbed

3

chemical reaction
what is produced and how?

produces new substances by rearrangement of atoms

4

chemical equations show us

the reactants and products

5

types of chemical reactions (5 types)

1. synthesis/combination
2. decomposition
3. single replacement
4. double replacement
5. combustion

6

combination reaction

two or more elements combine to form one product

7

decomposition reaction

one element breaks into 2 or more simpler substances

8

single replacement reaction

one element takes place of an element on the reacting compound

9

double replacement reaction

two positive ions switch place

10

combustion reaction

carbon containing compound (the fuel) reacting with oxygen to produce water and carbons dioxide and energy in form of heat