To identify a property, the first step you have to do is to decide which property you want to experiment with. Then, you test on a sample which is unknown. Finally, you compare and contrast the data with the known properties. :)
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Based on the properties you described, the unknown element is likely a metal. Metals are typically shiny and good conductors of electricity. You could also predict that it is likely malleable and ductile, as these are common properties of metals.
The unknown quantity that can be calculated after performing a titration is the concentration of the substance being titrated. This is typically done by using the volume of titrant required to reach an endpoint and applying stoichiometry to determine the concentration of the unknown substance.
The red, blue, and yellow paints are used as reference standard colors for comparison with the unknown paint sample after chromatography. By comparing the colors from the unknown sample to the standard colors, it helps in identifying the components present in the unknown sample based on their chromatographic separation pattern.
Mendeleev used the term "eka-aluminum" to predict the properties of an undiscovered element that would have similar characteristics to aluminum. This was part of his periodic table where he left gaps for undiscovered elements. Eka-aluminum was later discovered and named gallium, confirming Mendeleev's periodic trends.
Oxygen and nutrients are transported in the blood to the organs through small blood vessels called capillaries. These substances diffuse from the bloodstream into the surrounding tissues where they are needed. Waste products produced by the organs are then picked up by the blood and carried away for elimination from the body.
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