In binary ionic compounds the name of the cation (Metal) is first, so that’s how you know.
The atom contain 6 neutrons, if that's the question
It is always true that the rate at which a solute dissolves can be increased by grinding. The smaller the solute the easier it will dissolve in the solvent, while other facts play into the rate at which a solute dissolves in a solvent, a major part of this is also how small the solute is. You can think of how rock salt is harder to dissolve in water compared to finely ground salt.
It is sometimes true that as the temperature of a solvent decreases, the solubility of a solute increase. The reason for this is that for liquids and solids as temperature increases the solubility increases but for gasses, as the temperature increases the solubility decreases.
It is always true that stirring a solute when adding it to a solvent should increase the rate of its dissolving. however, this will not increase the amount that is able to be dissolved in the solution.
It is never true that Henry's law states that the solubility of a gas in a liquid is a function of temperature. Henry's law is a gas law that was determined by William Henry in 1803. The law dictates that when in constant temperature the amount of gas that dissolves in a given volume of a liquid is proportional directly to the partial pressure of the gas at equilibrium with the desired liquid. In simpler terms, the solubility of the gas in a certain liquid is proportional to the partial pressure of the gas above the liquid.
It is always true that two liquids that dissolve in each other are miscible. Miscibility is described as the property of liquids and other substances to mix in all proportions and forming homogeneous solutions.
The boiling of water and sublimation of iodine crystals are endothermic processes.
Answer: Option B & C
Explanation:
Endothermic process are the classifications of chemical reactions where the heat is absorbed by the system from the surroundings. As the matters can exists in three phases like solid, liquid and gases.
The endothermic process occurs by absorption of heat energy by the system. So according to the given options, the boiling of water and iodine crystal sublimation follows endothermic process. In the boiling of water occurs when the water molecules absorb heat from the surrounding and convert to gas phase.
Similarly, the sublimation of iodine crystals also require heat energy from the surrounding to break the bonds of the iodine crystals to sublimate to gas phase. Thus the boiling of water and sublimation of iodine crystals are the examples of endothermic processes.
Answer: Option (a) is correct
Explanation:
In a particular field of study, the collective opinion, judgement or outlook of a number of scientists or people is known as scientific consensus.
Therefore, the statement it represents the beliefs of most scientists is true about scientific consensus.
Scientific consensus is not the only way to prove a theory or law as it is only the collective judgement about a particular study. There might be other ways to prove the study. Hence, option (b) is not correct.
This collective judgement is not necessary to prove that a theory is true as there are number of theories on which there is no collective judgement of scientists. Hence, option (c) is not correct.
The interpretations are verified by going through the information provided. Hence, it is not necessary that scientific consensus is an assurance that the interpretations of a study are correct. Therefore, Hence, option (d) is not correct.
A research is the outcome of several experiments done by a scientist or a group of scientists that is not the collective judgement of number of scientists. Hence, option (e) is not correct.
Thus, it can be concluded that option (a) is correct that is the statement that scientific consensus represents the beliefs of most scientists.
