The smallest unit of a substance that may be made of 2 or more DIFFERENT elements or the SAME element.
What is a molecule?
200
Compound, molecule or both?
H2
What is a molecule?
200
The density of an object that has a mass of 15 grams and a volume of 2.34 cm(cubed)?
Answer must have the correct amount of significant figures!
What is 6.4 g/cm(cubed)
200
A change of form, not makeup
What is a physical change?
200
How many atoms of EACH element are present in the following?
3C6H12O6
What is CARBON = 18 atoms, HYDROGEN = 36 atoms, OXYGEN = 18 atoms
300
A sample of matter,a single element or a single compound, that has definite chemical and physical properties
What is a pure substance?
300
Compound, molecule or both?
CO2
What is both (molecule and compound)
300
The mass of a piece of metal which has a density of 11.3 g/cm(cubed) and a volume of 6.7 cm(cubed).
Answer must have correct amount of significant figures!
What is 76 grams
300
Physical Change or Chemical Change?
Dissolving sugar in water
What is a physical change?
300
What should you always wear in the lab?
What are goggles?
400
A combination of chemical symbols and number to represent a substance
What is a chemical formula?
400
Physical property or chemical property?
Green
What is physical property?
400
It is this type of property
What is physical?
400
6 Signs of a chemical change
What is color change, odor change, fizzing/foaming (releasing a gas), production of heat, light, or sound?
400
1 g/cm (cubed)
What is the density of water?
500
A mixture that is uniform or the same throughout
What is a homogeneous mixture?
500
Physical Change or Chemical Change?
Color change of the Statue of Liberty
What is a chemical change?
500
The action of an object that is 25 g with a volume of 18 cm (cubed) when placed in a bowl of honey.
HINT: Honey has a density of 1.42 g/cm (cubed)
What is float due to its lighter density of 1. 39 g/cm (cubed).
500
4 Physical Properties from the Mixture Lab
What is magnetism, solubility, density, color?
500
These are the same whether the sample you are observing is large or small.
What is characteristic properties or physical and chemcial properties?