Question

When the prophage leaves the host DNA,

1- it again rejoins with the host cell DNA to become a provirus

2- it detects the cell environment and becomes dormant

3- it takes over the host cell and directs it to make new viral parts

4- it will leave the host cell to infect other healthy host cells

Answer 1

Answer:

At 323 K, carbon monoxide is passed over impure nickel. On moderate heating, such as contact with a hot glass surface, Ni(CO)4 decomposes back to carbon monoxide and nickel metal. These two reactions form the basis for the Mond process for the purification of nickel.

Other names: Nickel tetracarbonyl

Molecular formula: Ni(CO)4

EU classification: Flammable (F); Very toxic (T+); Carc. Cat. 3; Repr. Cat. 2; Dangero.Ni(CO)4 can be prepared by passing carbon monoxide over nickel in the temperature range of *Ni(CO)4 can be prepared by passing carbon monoxide over nickel in the temperature range of *

Explanation:

At 323 K, carbon monoxide is passed over impure nickel. On moderate heating, such as contact with a hot glass surface, Ni(CO)4 decomposes back to carbon monoxide and nickel metal. These two reactions form the basis for the Mond process for the purification of nickel.

Other names: Nickel tetracarbonyl

Molecular formula: Ni(CO)4

EU classification: Flammable (F); Very toxic (T+); Carc. Cat. 3; Repr. Cat. 2; Dangero.