What is an anion?
An ion that is formed when electrons are gained, giving it a negative charge.
What type of bond is in a molecular compound?
Covalent
What are the products of a complete combustion?
Water + CO2 + energy
A compound that releases H+ in solution
Acid
What is the chemical formula of sulfate?
SO42-
What are the types of elements in a molecular compound? ______ + _______ ?
Non-metal + Non-metal
A reaction in which a large molecule breaks down to form two (or more) simpler products
Decomposition
Is this equation 2HgO ---->2Hg + O2 balanced?
Yes
When are roman numerals used in a compound name?
To denote the charge of an ion that is multivalent.
What prefix is used to name an element with 5 atoms?
penta-
Is this equation balanced? 2H3PO4 + 6KOH --> 2K3PO4 + 6H2O
Yes.
What is the general formula for a neutralization reaction?
acid + base ----->water + salt
How is an ionic bond formed?
Electrons are lost from one atom and gained by the other.
True or False? When the first element in the formula has one atom, mono- is used.
False
What type of reaction is Cu + AgNO3→ Ag + Cu(NO3)2?
Single Displacement
What is a balanced chemical equation?
An equation with the same number of atoms of each element on either side of the arrow.
Looking at an oxygen atom, will it lose or gain electrons, what will its charge be?
It will gain two electrons and have charge of 2-.
What is the name for N2O4?
Dinitrogen tetroxide
What type of reaction is AB + CD --> AC + BD
Double displacement
What number (coefficient) is needed to balance the following equation? KOH + HBr --> KBr + H2O
Which of the following is not an acid?
a.HCl b.HF c. NaCl d. H2SO4
c. NaCl