What are parts in the human stomach

Which is true of transition metals when moving from left to right on the periodic table? the d sublevels are not filled across the period. the cation radii become larger across the period. atomic radii increase slightly and then start to decrease. atomic radii decrease slightly and then start to increase. o

Express the following number in scientific notation. 0.026890 =

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form