Answer: The correct option is D.
Explanation: Table salt has a chemical formula NaCl.
This compound is an ionic compound.
Ionic compound is defined as the compound formed when there is a complete transfer of electron from one element to another.
NaCl consists of two elements, Sodium (Na) and Chlorine (Cl)
Sodium has an atomic number of 11 and its electronic configuration is . This element has 1 extra electron, so in order to have stable electronic configuration, this element will release 1 electron and forms a cation.
Chlorine has an atomic number of 17 and its electronic configuration is . Chlorine element requires 1 electron to have stable electronic configuration. Hence, this element will accept 1 electron and will form an anion.
When these two element combine together, Sodium will give away 1 electron to chlorine and therefore, chlorine becomes anion.
Hence, the correct option is C.
Answer:
B.) The drug gets carried through a stationary phase by a mobile phase and the retention time identifies the drug.
Explanation:
Chromatography is used in purifying complex mixtures of organic compounds. It uses the adsorption tendencies of compounds to seperate and identify them.
Chromatography is made up of two phases in contact, the stationary phase or non-mobile phase and the mobile phase. The movement of the mobile phase over the stationary phase causes the separation of a mixture into its constituents.
The stationary phase is made up of silica-gel or alumina in a solvent (an adsorbent) and the mobile phase or carrier is the organic solvent which is the drug.
Answer:
The correct answer to you your question is Potassium
Explanation:
Potassium is the most reactive
Answer:
2.86L
Explanation:
Given parameters:
V1 = 2.1L
T1 = 200°C = 200 + 273 = 473K
T 2 = 370°C = 370 + 273 = 643K
Unknown:
V2 = ?
Solution:
Since pressure is constant, we apply the Charles's law;
=
V is volume
T is the temperature
1 is the initial state
2 is the new state
=
V2 = 2.86L
Answer:
A. 1.3 bison/mi^2
Explanation:
4500 bison divided by 3472 sq miles is 1.3 bison per mile squared.