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Chemisty
Test study
Question | Answer |
---|---|
Definition of matter? | Substances that have mass and occupy volume, and makes up all things that exist. |
Four states of matter? | o Solids o Liquids o Gases o Plasma |
Sublimation? | From solid to gas directly. |
Deposition? | From gas to solid directly. |
Definition of Heterogeneous Mixture? | Substances in mixture easily separated. Ex. Sand |
Definition of Homogeneous Mixture? | Substances in mixture not easily separated. Ex. epoxy glue, bronze (alloy of copper and tin) |
Compound? | Joining of one ore more elements. Ex. H20 |
Molecules? | Smallest, discrete units that retain the chemical characteristics of the compound. |
Elements? | Cannot be broken down any further by chemical means. Have 1 type of proton and 1 type of electron. |
Equation for density? | d=m/v; where m is mass and v is volume. |
Convert Celsius to F. | F=9/5C + 32 |
Convert F to celsius. | C = (F - 32)5/9 |
Atoms | Have, normally, the same number of protons and neutrons. |
Binary Ionic Compounds? | Has two elements, one metal and one non metal. Ex. NaCl |
Ternary Ionic Compounds? | Has three elements. At least 1 non metal and 1 metal and 1 other. Ex. KNO3 |
Binary Molecular? | Has 2 elements. Both non metals. Ex. H2O |
Binary Acid? | Aqueous (compound that is dissolved in water) solution of a compound containing hydrogen and one other non-metal. Ex. HCl |
Ternary Oxyacid? | Aqueous solution of a compound that contains hydrogen, oxygen, and a non-metal. Ex. H2SO4 |
Name 5 classes of inorganic compounds. | Binary Ionic, Ternary Ionic, Binary Molecular, Binary Acid, and Ternary Oxyacid. |
Organic coumpound? | Its longest chain is made of carbon atoms. Methane is exception CH4. |
Isotopes of elements? | Protons and electrons are the same but it has different number of neutrons. |
diatomic molecules? | Hydrogen, nitrogen, and oxygen. |