Intro to Chem Reac.
What is a Chemical Reaction?
A process where substances change into new substances.
Involves breaking and forming chemical bonds.
Or Represented by chemical equations
2Na(s) + O 2(g) → 2Na 2O(s)
What is a Chemical Equation?
Ionic bonds involve the complete transfer of electrons from one atom to another
Electron transfer
If there were two bonds connecting a pair of elements (ie. O2) , what do we call the bonds?
What are double covalent bonds
A part of aspect of something especially one that is essential or characteristic
Starting substances and Substances formed or combined after a reaction
Reactants and Products
shows how many atoms of an element are in a molecule and shows how many molecules there are of a particular chemical
Subscripts & Coefficients
This transfer results in the ? of positively charged ? and negatively charged ?.
Formation of Ions
Do covalent bonds share electrons or transfer electrons?
What is to share electrons?
The number of protons in the nucleus of an atom, which determines of an atom or molecule in atomic orbitals.
Atomic number
Temperature, Concentration, Surface Area, Catalyst
How do you write a balanced chemical equation
Have the same number and type of each atom on both sides of the equation.
The oppositely charged Ions are attracted to each other through electrostatic forces, forming ionic bonds
Electrostatic Attraction
Covalent compounds are made up of two ..(nonmetals,metals,metalloids)?
What are nonmetals?
A table of the chemical elements in order of Atomic Number
Periodic table
A symbolic representations of a chemical
What are the steps to balance?
Write the unbalanced equation > count the atoms of each element on both sides > Adjust the coefficients to balance the atoms > Check the final equation to ensure it is balanced
The overall charge of an ionic compound must always equal what?
Zero
How do we decide how many electrons to place on the dot diagram?
What is the number of valence electrons?
Electrons in the outershell of an atom
Valence Electrons
Synthesis Reaction, Decomposition, Single-Displacement, Double Displacement, Combustion
What is Types of Chemical Reaction
Why is Balancing important?
To ensure the law of conservation of mass is followed to accurately represent the stoichiometry of the reaction.
What type of ion will metals become during ionic bonding?
Is H2 polar or nonpolar?
nonpolar
An element where properties are intermediate between those of the metals
Metalloid