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Mixtures
Solutions
Chemistry
Elements
Random
100
a mixture
What is two or more materials mixed together called?
100
Evaporation
How solutions are separated?
100
when you mix two or more substances and change occurs.
What is a chemical reaction?
100
A code that tells what kinds of atoms are in a molecule.
What is a chemical formula?
100
A characteristic that describes how a substance is changed when it reacts with other substances.
What are chemical properties?
200
An object that has mass, takes up space, and has a definite shape and volume.
What is a solid?
200
When the solute dissolves into the solvent it is called this.
What is a solution?
200
When a new solid, liquid, or gas forms.
What are three types of evidence of a chemical reaction?
200
Three results of the reactants, Baking soda and hydrochloric acid are...
What is salt, carbon dioxide, and water?
200
Protons, neutrons, and electrons.
What is an atom made of?
300
Is colorless and transparent, has a mass and takes up space, but does not have definite volume or shape.
What is a gas?
300
When the solvent cannot dissolve any more solute at room temperature.
What is a saturated solution?
300
The smallest particles that all matter on Earth is made of.
What are atoms?
300
Is any substance composed of two or more kinds of atoms.
What is a compound?
300
the number of protons in the nucleus of the element's atom.
What is an atomic number?
400
The______________ of the materials can be used to separate the mixture.
What are physical properties?
400
When a solution contains more solute than it should and has to be boiled in order to dissolve more solute.
What is a supersaturated solution?
400
When atoms combine to make new particles during a chemical reaction.
What are molecules?
400
___________ shows how the atoms in the reactants rearrange during a chemical reaction to form new products.
What is a chemical equation?
400
Mixtures of metals.
What is an alloy?
500
Two tools you would use to separate a mixture of earth powder, water, and gravel.
What are a filter and screen?
500
The chemical properties explain the difference in different types of this.
What is salt?
500
A chemical equation shows the starting substances,______________, and the ending substances, ______________ to show the reaction.
What are reactants and products?
500
A__________ is a mixture of two or more kinds of atoms and a _________ is a mixture of two or more materials.
What is a compound and a mixture?
500
The human body is made up of 75% of this molecule.
What is H2O?