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This equation allows us to solve density problems.
What is D=m/V
The fundamental thing that changes during a chemical changes.
What is a chemical bond?
one example of a physical change is this term, for a solid becoming a liquid
What is melting?
These substances have a fixed composition. Examples includes; H2O, aluminum foil, and copper pipes.
What is a pure substance?
This is the name of the chemicals you use during a chemical reaction.
What is reactants?
This is the most common unit(s) density is measured in.
What is g/cm3 or g /mL?
This type of chemical change is what happens with the combustion of one material.
What is burning?
This type of physical change involves taking a big piece of something and making it smaller.
What is cutting or grinding?
These substances have two or more kinds of matter physically mixed.
What is a mixture?
This is a change in which one or more substances are converted into different substances.
What is a chemical change?
This is required of all units in a density problem in order to successfully solve it.
What is matching units?
This type of chemical change is often quite visually appealing and always shocking to the observer.
What is a color change?
The process of the shape or volume of a substance changing at high or low temperature.
What is a phase change?
This method separates two objects that are mixed together by using a series of smaller and smaller holes.
What is filtration?
This is a change in a substance that does not involve changing the identity of that substance.
What is a physical change?
D=m/V
Solve for V
What is V=m/D?
This indicator of a chemical change happens at room temperature. But, if it happened at very high or very low temperatures would be a physical change.
What is the formation of a solid or a gas?
These are the temperatures water boils and freezes. Answers only accepted in Celsius.
This type of mixture is uniform throughout.
What is a homogenous mixture
This type of mixture is not uniform throughout.
What is a heterogenous mixture?
Copper has a density of 8.94 g/cm3 . What is the mass of a copper cube with a volume of 15 mL?
What is 134 g?
This happens when two molecules touch each other and combine to from a more stable molecule.
What is a chemical reaction?
Volume and mass are two examples of this, which depends on the amount of a substance you have present.
What is an extensive property?
This is an example intensive property.
What is density? or Boiling point, or Conductivity
Another name for a homogenous mixture.
What is a solution?