The element having valency of 1 is ~
I think the answer would be b because your throat is reacting to the cough?
The minerals that one might be examining if you place some hydrochloric acid on a sample and it fizzes are Calcite and Dolomite.
Calcite and dolomite are very similar minerals. Both have the same hardness, the same rhombohedral cleavage, and are found in identical geologic settings. The best way to tell one from the other is the acid test; A drop of 1 M HCl on calcite produces an instant , obvious Fizz; a drop on dolomite produces slow or no obvious bubbling.
Answer:
posotive
Explanation:
electrons give off negative pulse so take one away
A pi bond... hope this helps!!!!!
