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Stack #73472
| Question | Answer |
|---|---|
| Element | all atoms in a substance are exactly alike |
| Compound | substance in which the atoms of two or more elements are combined in a fixed proportion |
| Heterogeneous mixtures | mixture in which different materials can be identifed |
| Homogeneous mixtures | contains two or more gaseous, liquid, solid substances blened evenly throughout |
| Solution | a homogeneous mixtures of particles so small they cannot be seen and will not settle to the bottom |
| Colloid | a homogenous mixture that never settles but has larger particles that can scatter light |
| suspension | when particles in a mixture settle to the bottom |
| Ionic bonding | bonding that involes a transfer of electrond thus the attraction of opposite |
| covalent bonding | combining of atoms of elements to form new substances |
| Ions | changed atoms |
| Ionization | process of creating changed atoms |
| Filtration | Process by which larger molecutes in a mixture are trapped by a filter to separate them |
| Evaporation | process to separate by evaporating the liquid portion of a mixture and leaving behind solid substances |
| Paper chromatography | process of separating mixtures into parts |
| Acids | substances that produce hydragenious(HT) in a water |
| Bases | substances that form hydroxide |
| Litmus paper | Blue and Red paper that changes color in the presense of an acid or base |
| Phenolphthalein | a liquid that turns purple when a solution is added |
| pH paper | a strip of paper that changes colors |
Created by:
rjaniszewski