Sob condições apropriadas, acetileno, C2H2 e HCl reagem para formar
cloreto de vinila, C2H3Cl, que é usado para produzir o plástico
policloreto de vinila (PVC). A equação para a reação é:
C2H2 + HCl C2H3Cl
Numa reação, 35g de C2H2 são misturados com HCl. Quantos gramas
de C2H3Cl serão formados?

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Which of these features are formed when hot groundwater is forced out through cracks in the earth's surface?

Tooth enamel consists mainly of the mineral calcium hydroxyapatite, ca_10(po_4)_6(oh)_2. trace elements in teeth of archaeological specimens provide anthropologist with clues about diet and diseases of ancient people. students at hamline university measured strontium in enamel from extracted wisdom teeth by atomic absorption spectroscopy. solutions with a constant total volume of 10.0 ml contained 0.726 mg of dissolved tooth enamel plus variable concentrations of added sr. added sr find the concentration of sr in the 10 ml sample solution in parts per billion = ng/ml. find the concentration of sr in tooth enamel in parts per million = mu g/g.