When the temperature of a liquid of specified composition solidifies under a specified pressure is called?
What is freezing point
100
Anything that has mass and occupies space.
What is matter
100
A pure substance that cannot be broken down into other substances by chemical or physical means.
What are elements
100
This is a chemical substance that is present at the start of a chemical reaction
What is reactants
100
Filtration, using filter paper and a funnel can be used to separate which materials?
A. Sand & pepper
B. Pepper & water
C. Oxygen & water
D. Iron fillings & sulfur
What is B. Pepper and water
200
The temperature at which a substance changes from a solid to a liquid.
What is melting point
200
A characteristic of a pure substance that can be observed without changing it into another substance.
What is physical property
200
A pure substance made of two or more elements chemically combined.
What is compound
200
This is a chemical substance formed as a result of a chemical reaction.
What are products
200
Name two physical changes.
What is size, shape, color, texture
300
What is the quality of being easily ignited and burning rapidly?
What is flammability
300
What is the measure of how much mass of a substance is contained in a given volume?
What is density
300
Two or more substances that are mixed together but not chemically combined.
What is mixture
300
This is a symbolic representation of a chemical reaction; reactants are represented on the left, and products on the right.
What is a chemical equation.
300
A solution mixture that is very evenly mixed.
What is homogeneous
400
What is the addition of oxygen to a compound with a loss of electrons?
What is oxidation
400
A characteristic of a pure substance that describes its ability to change into a different substance.
What is chemical properties
400
This forms when substances dissolve.
What is a solution
400
Burning fuel is this type of change.
What is a chemical change
400
How would you separate the component of the mixture Iron Fillings?
Use a magnet
500
What is the ability of an object to transfer heat or electricity to another object?
What is conductivity
500
Used to determine acids and bases
What is pH
500
The basic particle from which all elements are made.
What is an atom
500
Freezing point is an example of what type of property?
What is a physical property
500
Identify the reactants...NaOH + HCl --> NaCl + H2O