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solution chemistry
science
Question | Answer |
---|---|
what is matter? | anything with mass and takes up space/ can be classified as a pure substance or a mixture. |
pure substance | is the same thorough out doesn't vary |
mixture | a blend of two or more kinds of matter |
heterogeneous | are not uniform through out/you can see its mixture |
homogeneous | are uniform in composition/ you cant see that its a mixture |
solutions | homogeneous mixtures |
solvent | the dissolving medium/ it stays |
solute | the substance being dissolved/ it leaves |
alloys | solid solutions/ two or more metals are uniformly mixed/ ex: brass /advantages: higher strength and greater resistance to corrosion |
suspensions | mixtures in which particles of the mixture are more or less evenly dispersed throughout a liquid or gas |
colloids | particles that are intermediate in size between those in solution and suspensions. |
the Tyndall effect | particles that are large enough to scatter light |
Brownian motion | at a right angle this motion is due to collisions rapidly moving molecules / discovered by Robert brown |
factors affecting solubility (the ability of a substance to be dissolved) | temperature pressure surface area agitation |
polar | ionic compounds dissolves in water because water is polar |
nonpolar | compounds dissolve non-polar substances |
acids | substances that in solution can donate a hydrogen ion (proton) to another substance |
bases | substances that in solution can accept a hydrogen ion from another substance |