题目

Time for Kids (TFK) gets the great news on the coolest toys for 2014 at the 111th American International Toy Fair. What’s four days long, bigger than seven football fields, and filled with thousands of toys? It’s Toy Fair 2014! Each year, hundreds of toy companies from across the country come together in New York City. All kinds of products are shown as a way to know what’s to come in the new year. This year’s trends include oversize toys. “In 2014, everything is really big and really out there,” says Adrienne Appell, a toy-trends expert. Toy Fair is the largest toy trade 某银白色固体A在空气中点燃，火焰呈黄色，并生成淡黄色固体B；将A在空气中露置，最后变成白色固体C。将A、B投入水中都生成D；B与D分别与二氧化碳反应。则A是_________；B是__________；C是________；D是_________。 B与H2O反应的化学方程式______________________________________， B与CO2反应的化学方程式为_____________________________________________ A与H2O反应的化学方程式  __________  __