The pH scale
is water a acid,basic, or neutral
Neutral
what state of matter is soap
Liquid
what change is it when a metal bar rusts
chemicals
what is double displacement
two ionic compounds switch partners
what is the Lewis dot structure
it shows the amount of valency in a atom
What does it mean when litmus paper turns red to blue
the liquid is an basic
what state of matter moves the most
gas
is ice melting a physical change or chemical
physical
what is combustion
a substance reacts with oxygen to create water or carbon dioxide
when oxygen has 6 dots around it what does that mean
oxygen has 6 valence electrons
what does the pH scale range from
0-14
what is the most uncommon state of matter
plasma
does the color changing of an item indicate a chemical change?
yes
what is combination
2 substances combine to form a different substance
what are triple covalent bonds
2 non metals bonding together by sharing 3 unpaired electrons
what does oh- mean
basic
which state of matter moves the least
solid
are chemical changes reversible
no
whats a single displacement
one element takes the place of another in a compound
whats a double covalent bond
two non metals bonding together by sharing 2 unpaired electrons
what does h30+ make up and is it hydronium or hydroxide
h30+ makes up acidity and its hydronium
Name all the states of matter
gas liquid solid plasma
what change is grinding a rock
whats the highest valencey a atom can have in the lewis dot structure
7