MIXTURES AND SOLUTIONS
Name 6 tools used to separate mixtures. (Think of size, attraction, spinning, and changing state. We used 5 of them and read about the 6th.)
What are Filters, magnets, screens, evaporation, chromatography, and centrifuge
3 states of matter that allow matter to exist with different properties. Each state takes up a different about of space or volume. They have the same mass or weight.
What is Solid, Liquid, Gas
a way to separate a mixture by passing it through a material. some molecules move slower than others in the materials.
Chromatography
What is a substance?
All molecules of one substance are exactly the same and different from the molecule of any other substance.
This tool was used to separate red dye from yellow and blue dye.
Chromatography Paper
I am tiny, but I fill everything. You cannot see me but you can see us. What am I?
Atoms
Name the two parts of a solution.
Solute and Solvent
What is the gas form of water called?
Water Vapor
Colorless, odorless, tasteless material known for its value to all living things. Without it, life would not exist. Commonly known as water or H2O.
Dihydrogen monoxide
What determines the properties of a substance?
The properties of a substance are determined by the properties of its molecules.
something scientists make to answer questions about the real world
Model
All my atoms come together to make only me and nothing else. You can mix me with other things to make something new. What am I?
Elements, (Substance would also work)
Name two substances that dissolve in water.
Salt, Sugar, Tea, Citric Acid, Calcium Chloride
When water changes from liquid to gas it is said to have....?
evaporated
typically the liquid part of a solution that dissolves or forces another substance to spread out evenly.
solvent
Why would a liquid not mix with another liquid?
The more a liquid's molecules are attracted to one another, the more the liquid will hold together.
a type of mixture that is stable due to one substance (a solid) spreading out evenly in another (a liquid) due to the high attraction the solids have to the liquid.
What is a Solution?
The molecules of my friends do not like to stay together so I intervene to keep them close. Call me the middle man or the bond that keeps them together. Without me they would remain a part. What am I?
Emulsifier
What is the difference between a mixture and a solution?
A mixture is any combination of two or more substances while a solution is one substance dissolving into another.
Different molecules have different _______?
properties
typically the solid part of a solution that spreads out evenly in a substance.
solute
Define dissolving.
When the molecules of a solid are attracted to the molecules of a liquid, they spread apart and mix together evenly.
True or False: All molecules of a solid or liquid will spread out evenly in water forming a stable mixture. WHY?
False- Some solid and/or liquid molecules are more attracted to themselves than the molecules of water.
I am all the different atoms together in order from smallest to largest. I collect different substances but never mix them. What am I?
Period Table of Elements
Where does a solid material go when a solution is made?
A solid material spreads out into the solvent as the molecules of the solid are attracted by the molecules of the liquid.
If all molecules that have the same properties is a substance, then a group of molecules together that each have DIFFERENT properties must be a _____?
mixture, group of different substances, 2 or more substance put together.
a group of atoms joined together in a particular way forming a substance or chemical compound
molecule
What happens when an emulsifier is added to a mixture that does not normally mix?
Molecules of an emulsifier attract the molecules of two liquids that do not typically mix, allowing the molecules of the emulsifier and of the liquids to mix. (The two liquids are attracted to either side of the emulsifier.).
Explain what happens when 2 liquids mix without an emulsifier.
When the molecules of two different liquids are attracted to one another, they cluster(group) together and become evenly distributed in the mixture.
When there is more stuff, I grow, but without gravity, I don't exist. What am I?
Weight
What happens to the molecules during a chemical reaction?
The atoms are more attracted to the atoms in the mixture rather than their original substance. They leave their original substance and form a new one not part of the original mixture.
When a substances is more attracted to itself than another substance it will...
stay together or not mix
Two or more substances that have been mixed and its molecules stay mixed
Stable Mixture
When the atoms of two substances are more attracted to each other than to the molecules their original substance the atoms separate and form a new substance.
What is a chemical reaction?
two or more substances put together that are mixed but begin to separate over time layering due to the attraction they have to themselves.
Unstable mixture
When I take more space, I grow, but fill the inside of me and I stay the same. What am I?
Volume