The correct answer is Gallium.
The largest temperature range for the liquid state of an element is Gallium
What Is Gallium?
A chemical element called gallium has an atomic mass of 69.72 g.mol^-1. Gallium has an atomic number of 31. In general, gallium is thought to be a soft metal under normal pressure and temperature. Ga stands for gallium.
Properties of Gallium
- A soft metal with an extremely glossy surface is gallium. The color of pure gallium is somewhat silver-blue. Gallium does not exist in its elemental or natural form in the natural world. It must be removed through smelting or some other process. It is incredibly distinct and doesn't resemble metal at all. It is pliable and a knife can be used to cut it.
- It has a relatively low melting point of roughly 29 degrees Celsius. As a result, if your body temperature is higher than 30 degrees Celsius, a portion of it may likely melt in your hands. It is one of the four non-radioactive chemical elements that are liquid at ambient temperature, along with mercury, rubidium, and cesium. Gallium readily adheres to porcelain or glass.
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Answer:Electrolyte
Explanation:Electrolyte is a compound either in solution or in molten form that gets decomposed by thee passage if electricity through it. Water is polar,but a weak electrolyte, so in cells,water is used as an electrolyte
Answer: HBr has the lowest rate of effusion at a given temperature.
Explanation: The effusion rate usually increases with increase in temperature because the kinetic energy of the gaseous molecules increases. But it was not true for gases having heavier mass. This was explained by Graham's Law.
Graham's Law states that the rate of effusion of a gas is inversely proportional to the square root of its molecular weight.
We are given different gases with different Molecular masses. The gas having larger Molecular mass will have the lowest rate of effusion.
Mol. Mass of = 80 g/mol
Mol. Mass of = 16 g/mol
Mol. Mass of = 17 g/mol
Mol. Mass of HBr = 81 g/mol
Mol. Mass of HCl = 36 g/mol
As, Mol. mass of HBr is the highest, so its rate of effusion will be the lowest.
Answer:
Correct Option is Option A
A.)It became prey to certain organisms in the river.
Explanation:
CHECK COMPLETE QUESTION BELOW;
An invasive fish species was accidentally introduced into a river. At first, it experienced a sudden surge in its population. Then it experienced a steady decline. Which statements give plausible reasons for this trend?
A.It became prey to certain organisms in the river.
B.It lacked adaptations suitable for that particular ecosystem.
C.It had no predators in its new environment.
D.It had few organisms to compete with for resources.
Aquatic invasive species are species such as fish or invertebrate that is absorbed by new aquatic environment that are differ from their own natural environment.
When Aquatic invasive species found themselves in a new environment, at first they will experience a rapid increase in the number of their population this is because of the lack of natural predators in the new aquatic environment. As a result of this they bring about the alteration of food web structure, they take in charge of available food for the native species and compete with them. As a result of this competition involved there is a decrease in the population.
Therefore, the statements that gives plausible reasons for this trend is that became prey to certain organisms in the river.