A solubilidade é determinada a partir da quantidade de soluto (em gramas), para
cada 100g de água. Suponha que a solubilidade de um sal seja de 20g/100g de
água, a 25°C. Se eu preparar uma solução, a 25°C, utilizando 15 g de sal em
100g de água, que tipo de solução será obtida? Por que?
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1)each group 16 element has how many valence electrons? ( )4 ( )6 ( )8 ( )16 2)how many dots appear in the dot structure for calcium ion, ca2+? ( )zero ( )one ( )two ( )eight 3) which of the following atoms forms a cation to obtain an octet of outer shell electrons? ( )magnesium ( )oxygen ( )fluorine ( )helium 4) an al3+ ion contains 13 protons and 10 electrons. ( )true ( )false 5) valence and non-valence electrons are represented in lewis dot structures. ( )true ( )false

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An unknown insoluble substance displaced the water shown. it's mass is indicated on the triple beam balance. mass = a. 694 b. 693.5 c. 693.0 d.693.8