Chemical bonds
What are the 2 types of bonds
Covalent and ionic
What is a chemical reaction?
Occur when substances go through chemical changes to form new substances
A+B—AB
Synthesis
Name 5 of the 7 strong acids
hydrochloric, nitric, hydroiodic, perchlyric, sulfuric
What are the three types of nuclear radiation?
Alpha, beta, Gamarays
What is a compound
A substance made up of atoms of two or more different elements joined by chemical bonds
What is the energy store in chemical bonds?
Chemical energy
AB—A+B
Decomposition
A compound that produces hydronium ions when dissolved
What is an acid
what is the time required for half of a sample of radioactive isotope to decay?
Half life
What is a bond?
The force that hold atoms or ions together as a unit
A chemical reaction that releases energy to its surroundings
What is exothermic reaction?
CxHx+O2—CO2+H2O
Combustion
What is a base
Any compound that increases the number of hydroxide ions when dissolved in water
What is uranium 238 used for?
to date earth
What type of bond shares electrons?
Covalent
A chemical reaction that absorbs energy from its surroundings
What is endothermic reaction?
AB+C—AC+B
Single replacement
What are uses for acids?
Sour candy, cleaning supplies, chlorine for pools, fertilizer.
What is the process by which a nucleus splits into two or more fragments and releases, neutrons and energy
What is polarity?
The unequal sharing of electrons
Why is energy always conserved?
Because energy can’t be created or destroyed
AB+CD—AD+BC
Double replacement
What are the properties of acid?
Sour, conduct electricity, corrosive.
What is a nuclear reaction in which the nuclei of two atoms combined to form a larger nucleus
Fusion