Gen Chem Test 1
Terms
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- +2
- charge of zinc (Zn)
- nano
- 10 ^ -9
- halogens
- 7 A
- heterogeneous
- matter that is not uniform throughout
- acid
- compounds that form H+ cations when dissolved in water
- atomic number
- number of protons in the nucleus
- distillation
- seperation by differences in boiling points
- exothermic
- heat is released to the environment
- oxyacids
- contain oxygen, hydrogen, and a third element
- filtration
- seperation by differences in solubility
- crystalline solid
- long range, repeating order
- number
- tells a value
- +1
- charge of silver (Ag)
- metals
- solids at room temperature, conduct heat, malleable, ductile, lose electrons and form cations
- binary acid
- contains hydrogen and one other nonmetal
- unit
- indicates the scale
- molecule
- the smallest piece of a compound
- amorphous solid
- little order
- milli
- 10 ^ -3
- periodic law
- when the elements are arranged in order of increasing relative mass, certain sets of properties recur periodically
- +3
- charge of aluminum (Al)
- anion
- negative ion--- named by changing the ending of the name to -ide
- type I metal
- forms only one type of ion
- centi
- 10 ^ -2
- allotrope
- one of 2 or more crystalline or molecular forms of an element
- kilo (K)
- 10 ^ 3
- metalloids
- show some properties of metals and some of nonmetals
- scientific law
- statement of fact meant to exlpain a single action or a set of actions
- homogeneous
- matter that is uniform throughout
- isotope
- atoms of an element that differ only in the number of neutrons in the nucleus
- molecular compound
- formed from the combination of two or more nonmetals
- type II metal
- forms more than one typ of ion
- deci (d)
- 10 ^ -1
- mega (M)
- 10 ^ 6
- giga (G)
- 10 ^ 9
- alkali metals
- 1 A
- scientific method
- observe, hypothesis, predict, verify, evaluate
- ionic compound
- formed from the combination of a metal with a nonmetal
- micro
- 10 ^ -6
- theory
- an explanation of a set of related observations or events
- cation
- positive ion
- atomic mass
- protons + neutrons
- endothermic
- heat is absorbed from the environment
- alkaline earth metals
- 2 A
- nonmetals
- poor heat and electricity conductors, brittle solids, gain electrons and form anions