the one I failed Flashcards
In ionic compounds _____ gain more valence electrons to form negatively charged
nonmetals, anions
The ending of all polyatomic ions must be changed to -ide
false
In a molecule with covalent bonding,
atoms are held together by sharing electrons
A new solid that forms during a chemical reactions is called a
precipitate
ions do not have an overall charge
false
There can not be more then 2 reactants in a chemical reaction
false
Percipitation
when a new solid forms in a solution
Residue
A solid is refereed to as this when it is the material left behind after a separation process such as flirtation.
The actual yield of a chemical reaction is measured on a balance in the lab
True, it is the amount of product that is obtained after it is performed in lab
Percent yield is rarely 100% because..
other unexpected reactions occur which don’t produce the desired product
protons and electrons are the number on upper left but neutrons??
to get neutron number you have to subtract atomic number and number on periodic table