The complex CoCl2(en)2 is named as DICHLOROBIS (ETHYLENE DIAMINE) COBALT(II) CHLORIDE.
Here the oxidation number of Cobalt metal is +3. It is a complex compound with no charge on ethylene diamine as it is neutral. The charge on the whole compound is +1.
Answer:
Acid
Explanation:
Acid pHs range from 1 to 6. Base pHs range from 8 to 14. 7 is neutral.
The smaller the pH, the more acidic the substance is.
Right now, the solution with pH 5 is moderately acidic. However, if its pH decreases to 3, that means the solution has become much more acidic. The only way to become more acidic is to have added an acid.
Neutralizer is wrong because it would not make the acid more acidic; it would probably neutralize it and either keeps its pH the same or raise its pH a litte.
Base is wrong because if a base was added, the pH would likely increase.
There is enough info to tell.
Hope this helps!
the correct answer is option <u>d. 70.28 g/mole</u>
(◍•ᴗ•◍)
Answer:
Explanation:
The solid consists of positive and negative ions, so it is an ionic solid.
Ionic solids are brittle, usually water-soluble, and poor thermal conductors as solids. Thus, the correct answer is .
(A) is wrong. It describes a covalent solid, which is soft and always a poor conductor.
(B) is wrong. It describes a covalent solid, which is also low-melting.
(D) is wrong. It describes a metal, and a metal does not contain negative ions.