Match each vocabulary word with the appropriate definition
chemical change
a change in matter that results in a
change in its identity and properties
chemical property
the ability of matter to change into a
different substance
combustibility
the ability of a substance to burn
reactivity
the ability of a substance to combine
chemically with another

What is the molality of a solution that has 4 mol of kci in 0.800 kg of water

1. suppose a reaction mixture, when diluted with water, afforded 300 ml of an aqueous solution of 30 g of the reaction product malononitrile [ch2(cn)2], which is to be isolated by extraction with ether. the solubility of malononitrile in ether at room temperature is 20.0 g/100 ml, and in water is 13.3 g/100 ml. what weight of malononitrile would be recovered by extraction with (a) three 100-ml portions of ether and (b) one 300-ml portion of ether? suggestion: for each extraction, let x equal the weight extracted into the ether layer. in part (a), the concentration in the ether layer is x/100 and in the water layer is (30 x)/300; the ratio of these quantities is equal to k 20/13.3.

One does not belong why? ice, gold ,wood ,diamond and table salt