States of Matter
what are the 4 states of matter?
plasma,solid,liquid, & gas
a chemical property that describes an atoms ability to attain & bind with electrons
what is electronegativity?
Every time we jump down a pH, the concentration of the acidic ions multiplies by what?
10x
when a substance transforms into a new substance with different properties
what is a chemical change?
A substance that breaks down into two or more simpler substances
what is decomposition?
If I were to heat up liquid, what state of matter will it will become?
Gas
the ability of an atom's inner electrons to shield its nucleus
what is the ions that makes something more acidic?
what is hydronium?
(True or False) All color changes indicate a chemical reaction
False! Mixing paints or food coloring with water are physical changes
a substance reacts with oxygen to create water,carbon dioxide, & a large amount of heat & light
what is combustion?
state of matter has the most tightly packed particles
what is a solid?
what trend has these qualities?
hard strong metals
high melting points
good conductors of heat
less reactive
what are transition metals?
H30+>OH-
what is acid?
(True or False) Fireworks are an example of a chemical reaction
True! Fireworks explode with bright colors and loud sounds due to rapid chemical reactions
AB+CD ~ AD+CB
what is double displacement?
(true/false) gas particles still touch even though they are far apart
true!
(True or False) The more ionization energy the more unlikely for it to be a cation
True!
A pH of 5 to a pH of 8, the pH of 5 is ____ times more acidic
this happens when iron reacts with oxygen & what change is this
what is chemical change?
CH4+O2~CO2+H2O
examples of plasma:
lighting, stars etc
(True or False) Ionization energy increases right to left
False!
What does the pH scale measure?
acidity!
Is burning wood a physical or chemical change?
chemical change
two ionic compounds react & the ions switch partners
a precipitate is formed
what is double displacement?