Measuring Matter
Physical/Chemical
Calculations
Acids and Bases
100
If kailer weighed Kevin on Earth, and then weight Kevin on the moon? would he have the same weight?
no
100
digestion of food
chemical change
100
CH4+O2→CO2+H2O
how many carbons are each side after balancing?
1
100
HCL is an example of what and what is it's name?
hydrochloric acid and acid
200
sharp object
200
Conductivity
physical property
200
A liquid has a density of 0.8 g/mL. What is the mass of 400 mL of this liquid?
320 g
200
what does corrosive mean?
something that eat away at things
300
meniscus
300
does not react with nitrogen
chemical property
300
A cube of sugar has a volume of 8 cm³ and a mass of 35 g. Calculate its density.
4.375 g/cm3
300
Define what is a base?
any compound that increases the number of hydroxide ions when dissolved in water.
400
how many times bigger is a kilometer to milimeter?
1,000,000
400
boiling point
physical property
400
balance this equation
K+H2O→KOH+H2
2,2,2,1
400
name me 1 of the 2 more common indicators we use
bromothymol blue or litmus paper strips.
500
difference between matter and volume
Anything that has mass & takes up space. All matter takes up space. The amount of space taken up, or occupied, by an object is known as the object’s volume.
500
beak off a nickel and drop it in a beaker of water and it starts to produce gas
physical and chemical change
500
balance this equation
CO2+H2O→C6H12O6+O2
6,6,1,6
500
an object with a pH scale of 2.3 would be considered a what?
strong acid