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18 Cards in this Set
- Front
- Back
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1. Define Chemistry.
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Science that deals with the composition of structure and properties of material and how it changes.
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2. Define the two branches of Chemistry.
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Organic and inorganic.
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3. Define Matter.
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Any substance that occupies space, has physical, chmeical properties.
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4. Describe the three forms of Matter.
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Solid, liquid or gas.
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5. Define element.
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The simplest form of matter and cannot be broken down into a simpler substance without the loss of identity.
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6. Define the difference between and element and a compound.
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Element:2 or more atoms of the same element that united chemically. Compound:chemical combinations of 2 or more atoms of different elements.
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7. What does ph stand for?
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Potiental Hydrogen
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8. What is the scale of ph?
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Degree of acidity or alkalinity and is measured on a scale 0-14.
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9. Are acid above or below a ph of 7?
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Below.
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10.Define solution.
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Blended mixture of 2 or more solids, liquids or gases.
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11. What is a solute?
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It is the dessolved substance in a solution.
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12. What is a solvent?
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It is a substance, usually a liquid, that dissolves another substance to form a solution with no change in chemical composition.
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13. Which is not capable of being mixed, miscible or immiscible?
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Immiscible.
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14. Define suspension.
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A state in which solid paricles are distributed throughout a liquid meduim.
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15. Define emulsion.
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It is a mixture of 2 or more immiscible substances united with the aid of a binder or emmulsifier.
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16. What does the head of the surfactant molecule that is hydrophilic mean?
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Water loveing.
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17. Define oil in water(o/w)
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Oil droplets are suspended in a waterbase.
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18. Define wate in oil (w/o)
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Droplets of water are suspended in an oilbase.
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