中国大学MOOC: Dalton recognized that the structure of atoms in a particular element or compound is__4_.
举一反三
- A chemical compound that contains two atoms of oxygen and one atom of another chemical element is called ______
- The atoms of an element are identical, but different from atoms of other elements.
- Which analysis indicates whether a particular element or compound is in the sample? A: Qualitative analysis. B: Quantitative analysis. C: Chemical analysis. D: Instrumental analysis.
- The structure of this 27-carbon compound suggests a complex biosynthetic pathway, but all of its carbon atoms are provided by a single precursor—_______. A: formic acid B: acetate C: propionate D: pyruvate
- 中国大学MOOC: When impurity atoms replace the host atoms, it is called a/an solid solution