a. 4. Which of the following correctly provides the names and formulas of polyatomic ions? carbonate: HCO, bicarbonate: CO,? b, nitrite: NO ; nitrate: NO, c. sulfite: S4, sulfate: SO, d. chromate: Cro, ?, dichromate: Cr,0,2 Mitton ?

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

16. why must the number of electrons lost equal the number of electrons gained in every redox reaction? use 3 – 4 sentences in your own words to address this question. 18. what type of radiation is emitted when chromium-51 decays into manganese-51? show the nuclear equation that leads you to this answer. 19. a radioactive nucleus alpha decays to yield a sodium-24 nucleus in 14.8 hours. what was the identity of the original nucleus? show the nuclear equation that leads you to this answer.

Chromosome 17 is made of over million base pairs.