Friday, January 31, 2014
Chemical reaction (definition)
A chemical reaction is the process that involves the rearrangement of molecules or ionic structure of a substance, a change in physical form or a
nuclear reaction is the opposite.
Law of Conservation of Mass
Law of Conservation of Mass means that mass cannot be created or destroyed by ordinary chemical or physical changes. So even though you make a new substance you will not be able to destroy or create the mass(es) of the element(s).
Friday, January 17, 2014
Metallic Bonds
A metallic bond is a chemical bond in which electrons are shared over many nuclei and electronic conduction occurs.
Covalent Bonds
A covalent bond is a chemical bond that involves sharing a pair of electrons between atoms in a molecule.
How do protons relate to elements?
Protons relate to elements because protons are positively charged electrons in atoms that make up elements.
Thursday, January 9, 2014
Ionic Bonds
An ionic bond is a chemical bond in which one atom loses an electron to form a positive
ion and the other atom gains an electron to form a negative ion.
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