Compounds
What is a compound?
2 or more elements chemically bonded to form a new substance.
What is the Tyndall Effect?
The scattering of light beam through a medium containing suspended particles.
Another term for a 3D repeating pattern?
Crystalline
What is the most reactive elements on the periodic table?
Halogens
What sense do you lose when you sleep?
smell.
What is the difference between a compound and a mixture?
A compound combines elements and forms a new substance, a mixture is elements or substances that are mixed, but not chemically combined.
Give an example of a colloid
milk, mayo, milk of magnesia
What is a solution?
A mixture in which one or more substances is mixed within another and evenly distributed on a molecular level.
Everytime you breathe out, you release CO2 into the atmosphere.
Is this gas that is released a compound or mixture?
What is it made up of?
Compound, one carbon 2 oxygen.
What animal has rectangular pupils?
Goats.
What are the four carbon based compounds?
Carbohydrates, Lipids, Proteins, Nucleic Acids
In a mixture of copper with tin, it forms brass. What is the solute? What is the solvent.
Copper (solvent) tin (solute)
Define: Homogeneous
A mixture that is evenly distributed at a molecular level.
The Sodium and Chloride ions bond to the hydrogen and oxygen atoms breaking it down.
Chemistry
In molecular bonding, what part of the atom is shared? (you don't know this yet, but I want a guess)
Electrons. Specifically valence electrons.
The process of decantation breaks down what kind of mixture?
Colloids
Define: Heterogeneous
A mixture that is not evenly distributed
Why does water level DECREASE when you add salt to water?
The salt (NaCl) binds with the water molecules, effectively reducing the water level. (This is unnoticeable to the naked eye) but you will notice that the water level will not rise.
This fruit is radioactive
Bananas-They contain a high enough level of Potassium (K) which is radioactive.
What two kinds of elements are readily going to bond with each other. Think of where Sodium and Chlorine are on the periodic table.
Metals and Non-metals (includes halogens).
What is a special property about mixtures that separates it from compounds?
They can be separated by physical means.
What is an inorganic compound?
A compound that comes from rocks and minerals (non-living things).
Where did Dmitri Mendeleev find inspiration for ordering the elements on the periodic table?
Which element works against gravity?
Helium