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Chemestry Vocab 2
chemestry words 26-50
| Question | Answer |
|---|---|
| Angstrom | A unit of linear measure 1x10E-8cm, symbol (A with small circle on top) |
| Anhydrous | Without water of crystallization. |
| Anion | An ion attracted to the anode of an electrolyte cell; a negative ion. |
| Annealing | The process of heating a material to above a certain temperature and then slowly cooling it in order to decrease its hardness and brittleness. |
| Anti-Oxidant | A substance which retards oxidation. |
| Atom | The smallest particle of an element that can exist alone or in combination with other atoms of the same or of another element. |
| Atom, Excited | An atom which has absorbed a photon. |
| Atomic Mass | The mass of an atom relative to the carbon 12 scale. |
| Atomic Number | The number if protons in the nucleus of an atom. |
| Atomic Theory | A statement which includes information concerning the structure and properties of atoms, the kind of reactions they undergo, the kind of compounds they form and the properties of these compounds. |
| Avogadro Number | The number of carbon 12 atoms in exactly 12 grams of this nucleotide; 6.02x10E23 |
| Barometer | An apparatus for measuring atmospheric pressure. |
| Base | (1) A substance which when added to water increases the hydroxide (OH-) ion concentration of the aqueous solution (2) A substance which acquires protons from another substance. |
| Beta Particle | An electron emitted from the nucleus of a radioactive element. |
| Binary | Pertaining to compounds made up of two elements. |
| Binary Compound | A compound consisting of only two elements. |
| Binding Energy | The energy released when a nucleus is formed from its component particles. |
| Bleaching | The operation by which color is partially or wholly removed from a colored material. |
| Boiling Point | The temperature at which the equilibrium vapor pressure of a liquid is equal to the prevailing atmospheric pressure. |
| Bond Energy | The energy required to break a chemical bond. |
| Brass | An alloy of copper and zinc. |
| Bright-line Spectrum | A spectrum consisting of a series of bright lines having frequencies characteristic of the atom present. |
| Bronze | An alloy of copper and tin. |
| Brownian Movement | The haphazard motion of colloid-ally dispersed particle as a result of collisions with the molecules of the dispersing medium. |
| Buffer | A substance which, when added to a solution, causes a resistance to any change in pH. |
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ksalazar
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