Scie 2 Flashcards
Is the shorthand way of expressing chemical reaction using numbers, symbol and formula
Chemical equations
Chemical equations has two major parts
•reactant
•product
The term for a substances that start a chemical reactions
Reactant
The substancr formed as a result of a chemucal reaction are called?
Product
Used to separate one reactant or product
+
Can be read as “reacts with” when used in reactant and can be read as “and” in product
+
Used to separate reactabt from product
->
Read as “yields” or “produces” in equation
->
Indicates that substance is in solid state
(s)
Indicates that a substance is in liquid state
(I)
Indicates that a subastance is in a gas state
(g)
Indicates that a substabce dissolve in water
(aq)
It cames from a term “aqueous”
(aq)
What term came is this symbol (aq)
Aqueous
Indicates tgat theres a heat applied or needed to make reaction proceed
According to them matter cannot be created nor destroyed. It is only converted from one form to another
Law of conservation of mass
This can also be aaplied in chemical equations, wherr atoms in the reactants must also be present in the products, dxcept that they are rearanged in a particular manners
Balancing chemical equations
In essence the numver of atoms of all elements in a chemical equation should be the same
Balancing chemical equations
If they are not, you neex to work providing integers numbers preceding eacg reactant or product, these number are called?
Coefficients
Represent tgr number placed infront of chemical formula to balance equations
Coefficients
Is the number appear on the bottom left or right of the symbol
Subscript
