1) What type of reaction is cobalt chloride with NaOH?

2) what type of reaction is cobalt chloride with excess ammonia?

1.) The result is a red solution and a blue-green precipitate.

2.) The reaction results in a precipitate of a basic salt, which can co-precipitate with other metal ions that form hydroxide precipitates, causing complications when trying to separate metal ions.

the answer to the first question is:

Here, cobalt(II) chloride (CoCl2) is added to sodium hydroxide (NaOH).

and I dont know the answer to the second one sorry

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

: )

its first and third is your answer i did the qustion the fourth isnt right