When lithium reacts with bromine to form the compound LiBr each lithium atom(1) gains one electron and becomes a negatively charged ion
(2) gains three electrons and becomes a negatively charged ion
(3) loses one electron and becomes a positively charged ion
(4) loses three electrons and becomes a positively charged ion
Answers
Answer: (3) loses one electron and becomes a positively charged ion
Explanation:
Lithium bromide is formed by combination of lithium cation and bromine anion.
Electronic configuration of lithium:
Lithium atom will loose one electron to gain noble gas configuration and form lithium cation with +1 charge.
Electronic configuration of bromine:
Bromine atom will gain one electron to gain noble gas configuration and form bromide ion with -1 charge.
In lithium bromide, one electron from lithium metal gets transferred to bromine atom.
(2) gains three electrons and becomes a negatively charged ion
(3) loses one electron and becomes a positively charged ion
(4) loses three electrons and becomes a positively charged ion
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Answer:
Explanation:
An old river occurs at the plain course and it is at its lower stage.
Here:
- The river gradient is very gentle as it is on a plain.
- An old river would be at its depositional phase where all the sediments its carries are being laid down.
- It has a low velocity and a very sluggish flow.
- Lateral erosion is very active at this stage.
- The volume of the river increases substantially as more river tributaries joins.
- Some of the river features are flood plains, leeves, ox-bow lakes, delta e.tc.
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Sodium Chloride (NaCl)
B.
Vinegar (CH3COOH)
C.
Baking Soda (NaHCO3)
D.
Bleach (NaClO)
Answers
Sodium Chloride (NaCl) can be classified as a salt
Explanation:
Sodium chloride is an "ionic compound" is known as salt. The ratio in which the sodium(Na) and chloride(Cl) present in sodium chloride in NaCl is 1:1. It is found in seawater and is accountable for the salinity of the seawater. Also, NaCl is the extracellular fluid for various multicellular organisms.
When refined, it becomes in its 'edible' form and is used in food preservatives. Whereas, the large quantity of sodium chloride is used in various industries.