I have finished my homework, s____ has Jenny.
将图中序号按其代表的意义填在下列相应的横线上:
空间资源____;矿产资源____;太阳能资源____;太空垃圾____;宇宙开发____。
2SO2(g)+O2(g) ⇌加热催化剂 2SO3(g)△H1=﹣197kJ•mol﹣1;
H2O(g)═H2O(l)△H2=﹣44kJ•mol﹣1;
2SO2(g)+O2(g)+2H2O(g)═2H2SO4(l)△H3=﹣545kJ•mol﹣1
则SO3(g)与H2O(l)反应生成H2SO4(l)的热化学方程式是____.
阅读短文,判断下面句子与短文内容是否相符。
I'm Wendy.I'm from Canada.Now I live in Guangzhou.Guangzhou is windy and cool in winter.It doesn't snow, and sometimes it's rainy.Today is January 28th,Spring Festival.I wear my new sweater and jeans.I go to the park with my parents in the morning.I visit my aunt Alice in the afternoon.In the evening,I have a big meal.I have chicken,beef,fish,mutton, tomatoes and carrots.They are delicious.