Elements and Compounds
What is an element?
This is the type of property that is described using the 5 senses.
What are physical properties?
This is a substance with variable composition.
What is a mixture?
What is distillation?
This is the state of matter with a definite shape AND a definite volume.
What is a solid?
This is a pure substance made up of two or more different elements.
What is a compound?
This is the ability of a substance to become a new substance(s).
What are chemical properties?
This is a substance that always has the same composition. It can be an element or a compound.
What is a pure substance?
This is a method that could separating coffee liquid from coffee grounds.
What is a physical property?
This is another name for a pure substance that can still count as an element despite containing multiple atoms that are "stuck" together.
What is a molecule?
A substance being flammable is considered this type of property.
What is a chemical property?
This is a special name for a mixture of metals.
What is an alloy?
This is the method for separating different dissolved substances based on their solubility. (Hint: You could separate different colors from a pigment this way)
What is chromatography?
Steel is this type of substance.
What is an alloy? (Mixture is also acceptable)
These are two different compounds that are made up of only hydrogen and oxygen.
What is water (H2O) and hydrogen peroxide (H2O2)?
This is another name for a chemical change.
What is a reaction?
This is the type of mixture you would have if you added so much salt to water that it no longer dissolved. (It became saturated)
What is a heterogeneous mixture?
This is the order of separation methods you would have to implement to get each substance out separately.
What is filtration and distillation. (Must be in that order)
This is the highest energy state of matter.
What is plasma?
This is the method for separating a water molecule into hydrogen and oxygen gas.
100 bonus points for giving the correct name for the process
What is running an electric current through it?
AKA Electrolysis (100 bonus points)
By mixing salt with water, you slightly lower the boiling point of water.
Adding salt to water is a _____________ change that causes a ____________ property (B.P.) to change.
What is physical change and physical property?
Gold is Au (Aurum) on the periodic table. Most gold jewelry is this type of substance.
What is a mixture or alloy?
Ally is given a mixture of benzoic acid and charcoal. She knows that benzoic acid dissolves in hot water, and charcoal does not. These are two separation methods that Ally must use to separate the mixture.
What are filtration and distillation?
These are the 3 elements that make up 14-karat gold jewelry.
What are copper, silver, and gold?