Types of Matter
A substance that contains only one type of matter and has consistent properties and composition throughout the substance.
What is a Pure Substance?
A physical combination of two or more substances that are not chemically joined.
What is a Mixture?
The flammability of a substance.
What is a Chemical Property?
Energy needed to start a reaction
What is activation energy?
A pure substance made of only one kind of atom.
A physical combination of two or more substances that are not chemically joined and is uniform throughout.
What is a Homogeneous Mixture?
NaCl was dissolved in H2O.
What is a Physical Change?
This can speed up a chemical reaction but is not considered one of the reactants because it does not get used up in the reaction
What is a catalyst?
A pure substance made of chemically joined atoms of two or more different elements.
What is a Compound?
A physical combination of two or more substances that are not chemically joined and is not uniform throughout.
What is a Heterogeneous Mixture?
The temperature at which a substance freezes
What is a Physical Property?
When bonds break, energy is...
What is absorbed?
The type of matter that forms when a pure substance is dissolved into another pure substance
What is a homogeneous mixture or solution?
A method for separating components of a heterogeneous mixture.
What is Filtration?
Two substances were combined that caused the combination to burn, change color, and release a gas.
What is a Chemical Change?
When products have more energy than reactants, the reaction is considered...
What is endothermic?
A process that can separate elements from a compound
What is a chemical reaction?
A method for separating components of a solution.
What is Distillation?
A liquid substance was heated causing the formation of a gas, and when the gas was cooled, it formed the same type of liquid again.
What is a Physical Change?
When water freezes into ice, this process is considered...
What is exothermic?