CHEMISTRY: CHEMICAL REACTIONS AND EQUATIONS

studied byStudied by 38 people
4.5(2)
learn
LearnA personalized and smart learning plan
exam
Practice TestTake a test on your terms and definitions
spaced repetition
Spaced RepetitionScientifically backed study method
heart puzzle
Matching GameHow quick can you match all your cards?
flashcards
FlashcardsStudy terms and definitions

1 / 14

flashcard set

Earn XP

Description and Tags

15 Terms

1
Reactants
________ absorb energy as they become products, hence the products have more potential energy than the reactions.
New cards
2
+ sign
A(n) ________ is used to separate each of the reactants and each of the products.
New cards
3
Exothermic
________: processes that release thermal energy when they occur.
New cards
4
exothermic reactions
In ________, the products have less potential than the reactants.
New cards
5
Physical change
change in appearance of the starting material
New cards
6
Chemical change
change of properties between the product and reactants
New cards
7
Endothermic
processes that require energy in order to occur
New cards
8
Endothermic changes include
The physical change of ice melting, food cooking, and evaporating liquid water
New cards
9
Exothermic
processes that release thermal energy when they occur
New cards
10
Examples include
the burning of carbon in oxygen and freezing of water
New cards
11
Balanced Chemical Equation
C + O₂ → CO₂
New cards
12
Unbalanced Chemical Equation
H₂ + O₂  → H₂O
New cards
13
law of conservation of mass
states that matter is neither created nor destroyed in chemical reactions.
New cards
14
product
substance that is produced by a chemical reaction
New cards
15
reactant
substance that enters into a chemical reaction
New cards
robot