(20 1 1? Jinjiang Quality Inspection) 20 1 1 March11day, a strong earthquake of magnitude 9.0 occurred in Japan, which triggered a tsunami, radioactive material leakage from nuclear power plants and v

(20 1 1? Jinjiang Quality Inspection) 20 1 1 March11day, a strong earthquake of magnitude 9.0 occurred in Japan, which triggered a tsunami, radioactive material leakage from nuclear power plants and volcanic eruption. (1) A. In the process of building collapse, only the shape changes, and no new substances are produced, which belongs to physical changes. B during the road interruption, no new substances are produced, which belongs to physical changes.

C, there is no new material produced in the process of village flooding, which belongs to physical changes. D, fuel combustion occurs in the process of fire, generating new substance carbon dioxide, which belongs to chemical change.

(2) Hydrogen reacts with oxygen to generate water when it meets an open flame. The chemical equation of the reaction is 2H2+O2? Light it? . ? The nuclear material leaked by 2H2O is dispersed because the basic particles that make up the material are constantly moving and spreading around.

(3) The "iodine" here does not exist in the form of simple substance, molecule or atom. "Iodine" here is an element that emphasizes existence and has nothing to do with specific forms.

(4) According to the information of uranium in the periodic table, the atomic number of uranium atom is 92, and the number of protons in a uranium nucleus is 92 according to atomic number = nuclear charge number = number of protons = number of electrons outside the nucleus; The name of this element is uranium, which belongs to metallic elements.

So, the answer is: (1) d; (2)2H2+O2？ Light it? . ? 2H2O continues to move forward; (3) elements; (4)92; Metal.