The ionic compounds are those where the electronegativity difference between two elements is more than 1.7
Here the following compounds are ionic
A) ammonium chloride : NH₄Cl
D) Rubidium iodide
: RbI
And
E) Barium oxide: BaO
Answer:
option d= 2
pH of gastric juice in stomach is vary from 1.5 - 3.5. So it could be 2.
Explanation:
Gastric juice present in the stomach is acidic in nature. It is composed of mainly sodium chloride, hydrochloric acid and potassium chloride. It is produce by the cells present in stomach lining. It activate the digestive enzyme and play important role in the digestion of protein . These enzymes break the chain of amino acids. Its acidic pH is not harmful for the stomach because lining cells of stomach also produce mucus that act as a barrier.
Chemical composition of gastric juice and their functions:
The gastric juice is a mixture of several chemicals including:
water:
water can not effect the stomach pH. it provide liquidity to mix the food, acids and enzymes. some enzymes also require water to perform the function.
Mucous:
It is produce in stomach. mouth and esophagus. It passes the food through gastrointestinal track in a protected way and also provide the protection to stomach from acid.
Hydrochloric Acid:
HCl is secreted by parietal cells of stomach. it kills the pathogens and bacteria in food and also convert the pepsinogen into pepsin. pepsin breaks the secondary and tertiary proteins and help in digestion.
Pepsinogen:
It also help to digest the protein.
Hormones and Electrolytes:
They help in food digestion and nutrient absorption.
Gastric Lipase:
t help to breake the fats of short and medium chain.
Amylase:
It is found in saliva and break down the carbohydrates.
Answer:
A
Explanation:
that should be the answer
Answer:
The main group number for an element can be found from its column on the periodic table.
Explanation:
For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.
Since they can still be unstable...nuetral atoms have the same amount of protons to electrons but to be stable they need to fill up there outer shell by gaining or losing electrons
