Đốt cháy hoàn toàn 28,48 gam hỗn hợp hai andehit no đơn chức, đồng đẳng kế tiếp nhau bằng lượng khí O2 vừa đủ. Hấp thụ toàn bộ sản phẩm cháy của sản phản ứng vào bình đựng dung dịch NaOH dư thì thấy khối lượng bình tăng thêm 89,28 gam. A. Tìm CTCT của hai andehit trên

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4

Express the following number in scientific notation. 0.026890 =

Both josef loschmidt and amedeo avogadro contributed to our understanding of basic molecular numbers, sizes, and reaction ratios. neither scientist discovered “avogadro’s number” in the form we use it today (6.02 x 10 23). still, there’s a controversy over the name. research the contributions from these two scientists and read about how avogadro’s number got its name. briefly state what you think this number should be called, providing key details of each scientist’s contributions to this concept and a solid rationale for your case in naming the number.