Chemical Test
Terms
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- PH color yellow green ph7
- Neutral
- a substance that is one color in the presence of an acid and another color in the presence of a base
- Indicator
- any compound that has a bitter taste, turns ph paper green to blue, number 8-12 and reacts with an acid to form salt and water
- base
- any compound that has a sour taste, turns ph paper red to orange, number 1 to 9, and combines with a base to form salt and water.
- acid
- a discription of a chemical compound using symbols and numbers
- formula
- elements chemically combined to form a new substance
- compound
- Elements in a horizontal row have the same number of electron energy levels
- Period
- the elements in a vertical column on the Periodic Table share similar properties
- Group
- the Universal abbreviation for an element
- Symbol
- usually a decimal number, found below the symbol on the periodic table. The mass of the protons and neutrons of an element
- Atomic Mass
- the number of protons in the nucleus of an atom. Found in the top right corner of an element's box on the periodic table
- Atomic number
- number of protons and neutrons in the nucleus of an atom. Determined by roundind the atomic mass to the nearest whole number
- Mass number
- the central core that contains protons and neutrons
- Nucleus
- the negatively charged particle that orbits the nucleus of an atom
- Electron
- the particle with no charge and is found in the nucleus of an atom
- neutron
- the particle that has a posotive charge and is found in the nucleus of an atom
- protons
- mixture formed when one substance completely dissolves into another
- solution
- ew substance that results from a chemical reaction
- product
- a substance that is part of a chemical reaction and that is present when the reactin begins
- Reactant
- any form of matter that contains more than one substance and can be separated physically
- Mixture
- material (liquid) that dissolves
- Solvent
- a substance, such as water, salt, or sugar, produced by or used in chemical reactions
- Chemical