(1) Have you seen this advertisement? "Gold partners send health, supplement calcium, iron, zinc, selenium, vitamins ... [1] nutrients involved in advertising language.

(1) [1] Six nutrients in human body include sugar, oil, protein, vitamins, water and inorganic salts. Among calcium, iron, zinc, selenium and vitamins, vitamins belong to nutrients and calcium belongs to inorganic salts. Among calcium, iron, zinc and selenium, the content of calcium is more than 0.0 1%, which is a macro element and the rest is a trace element. Iron is the main element to synthesize hemoglobin, and lack of iron can lead to anemia.

[2] Liver, lean meat, eggs, fish, beans and celery are rich in iron, so milk, vegetables, aquatic products, meat and beans are rich in iron and calcium.

So the answer is:

[1] vitamins, vitamins; Calcium; Iron;

[2]B； A.

(2): (1) soda is a kind of salt substance, so the answer to this question is: ①;

(2) Sodium nitrite is an industrial salt, which is toxic and easy to cause poisoning by mistake, so the answer to this question is: 8;

(3) Calcium oxide can react with water to generate calcium hydroxide, which can be used as a desiccant, so the answer to this question is: ⑤;