Answer:
there are two types of nomenclature used in organic system. the most widely used and universally accepted system of nomenclature is the IUPAC system of nomenclature. some compounds are referred to by their common name that existed before the IUPAC system or is more widely known than the IUPAC names.
Explanation:
IUPAC ( international union of pure and applied chemistry) system of nomenclature is used to name compounds in organic system. there are some principles to be followed while using this nomenclature. some of them are:-
1) identification of parent chain is the first step. the longest hydrocarbon chain is the parent chain.
2) identification of all the substituent groups of the parent chain is also required.
3) hydrocarbon cyclic ring has a fixed prefix and that is cyclo.
Water
Gold
Sand
Iodine
Answer:
the answer is water
Answer: water
Explain: Gradpoint
(2) lower entropy and higher energy
(3) higher entropy and lower energy
(4) higher entropy and higher energy
Temperature dependency is responsible for the process that hot water freeze faster than cold water.
The effect given above is called Mpemba Effect. According to this idea hot water freezes more quickly as compared to cold water. But until now there is no convincing explanation for this strange phenomenon. One idea is that hot containers make better thermal contact with a refrigerator and so conduct heat more efficiently because a good conductor is good fro the transfer of heat. Another idea about this effect is that warm water evaporates more quickly and since this is an endothermic process, it cools the water making it freeze more quickly.
warm water evaporates rapidly and since this is an endothermic process, it cools the water making it freeze more quickly.
Answer: The correct answer for the blank is-
B) cytoplasm.
Cytoplasm is the fluid filled compartment ( a thick, gel like substance) within the cell of a living organism that is mainly composed of water, salts, and proteins. It is surrounded by the cell membrane ( plasma membrane) and contains all the parts of cell ( such as in eukaryotic cell, it contains all the cell organelles except nucleus). It is the site for all the essential cellular processes.
Thus, option B) is the right answer.
Answer: Option (B) is the correct answer.
Explanation:
It is thick and gel like in nature which has fluid filled compartment.
Thus, we can conclude that out of the given options cytoplasm is a gel-like substance enclosed by the cell membrane that contains the cell's organelles.
Choose all answers that are correct.
A.
The addition of oxygen to the earth's atmosphere helped make possible the development of eukaryotic organisms, which need oxygen to carry out many of their life processes.
B.
When cyanobacteria evolved, they carried out photosynthesis. Oxygen is a product of photosynthesis. The addition of oxygen to earth’s atmosphere helped make possible the development of eukaryotic organisms, which need oxygen to carry out many of their life processes.
C.
The addition of oxygen to the earth's atmosphere helped make possible the development of prokaryotic organisms, which need oxygen to carry out many of their life processes.
D.
When cyanobacteria evolved, they carried out photosynthesis. Oxygen is needed to carry out photosynthesis.
Answer: because the vibration is of very short amplitude, at atomic scale.
Explanation:
The rocks are solid objects.
The solid physical state is characterized because the particles of the solid substances (molecules or atoms) are closely packed in fixed positions.
So, the particles of solids cannot slip (pass) on each other. Nevertheless, yet the particles vibrate rapidly. This vibration is the manifestation of the thermal energy of the substance.
The vibration of the atoms or molecules in a solid is of very short amplitude: it happens at atomic level, so that vibration is not visible. The vibration may be detected by x-ray diffraction but not by visible light.