It is ionic.Iodine is not dissolve in water because water is an extremely polar molecule , iodine exists in the diatomic form of I 2 and therefore non-polar and will not dissolved in water.
Iodine is highly soluble in non polar organic solvents like diethyl ether , ethanol, toluene but also least soluble in carbon tetrachoride and hexane because of weak induced dipole forces.
It is form charged transferred complex , most notably with the starch and these complexes , a fraction of the electronic charge is transferred to other molecule. This formation of these complex increase the solubility of iodine. Chloroform and carbon tetra-chloride.
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eel- electrical energy
bat- mechanical energy
polar bear- thermal energy
firefly- radiant energy
Answer:
Protein digestion occurs mainly in the stomach thanks to the pepsin enzyme. Then digestion is completed in the duodenum
Answer:
The exchange of substances between the blood vessels and the surrounding tissues can only happen in the <u>capillaries</u>.
Explanation:
Capillaries are the exchange vessels of our body. They form a network-like structure, called the capillary area. When blood, from the larger arterioles, spreads through the many capillaries in the capillary area, the blood pressure drops and the blood flows only at a slow speed. Through the thin, semi-permeable walls of the capillaries, the exchange of gas and substances between the blood and the surrounding tissue then takes place. Subsequently, blood continues to flow through the postcapillary venules, to which the capillary area has been reconnected. Blood pressure and blood flow increase and blood eventually reaches the heart through enlarged veins.
White blood cells, nerve cells, bone cells, and *striated* muscle cells
