No, materials do not melt at the same temperature. An example would be cooking oils. Some burn at lower temperatures than others.
You could possibly arrange an experiment for different substances to melt and boil at the same time, but they would not do so at the same temperature. Different substances have different properties, they do not all melt and boil at the same temperature.
The final temperature of the rivets will be the melting point of ice (0 degrees Celsius) because the heat gained by the rivets (from their initial temperature of 100 degrees Celsius) will be used to melt the ice. Once all the ice is melted, the temperature will stabilize at 0 degrees Celsius.
all the elements that has low boiling point than of the water.
Yes
The shape should not affect the Rate of Melting. It WILL change how long it takes Overall, but if you have a regular 'Ice Tray in the Freezer' Ice cube made for drinks and such and a large ice ball, as long as they are the same temperature to begin with, they will melt at the same pace. The larger one will just take longer because of its size.
no
Yes, all lumps of pure iron will melt at the same temperature, which is 1538 degrees Celsius (2800 degrees Fahrenheit). This is known as the melting point of iron.
All materials have the same temperature in identical conditions.
All materials have a certain point in which they will 'melt' and turn into a liquid, so yes :)
It depends on the substance and not in temperature, we have gas (oxygen) we can have liquid (water, H2O) and we can have ice... that will melt
it all depends on the temperature. ice melts faster at higher temperatures
No all solids do not expand at same rate because some solid expand at less temperature and some solids expand at less temperature. For example if we take iron and plastic iron expands at high temperature and plastic melt at less temperature(at candle light also).
The effect of salt (any soluble material will work) is to lower the freezing point of the water, making it melt faster at a given temperature (or melt at all, if the temperature is slightly below the normal freezing point).
It all depends on the temperature of the surfaces, the temperature of the air around the surfaces, and other small unavoidable environmental inequities. In theory, however, if the conditions are exactly the same (surfaces same temperature in a vacuum with heat magically applied the the ice cubes in the exact same way with no heat loss to the surfaces) they will melt at the same rate. In reality the circumstances are too variable to test this perfectly though.
Not all of them. Mercury is liquid at room temperature. Bismuth and lead melt at relatively low temperatures.
Because when the temperature is cold the snow that is at least partially the source of water in the river doesn't melt as rapidly or maybe it doesn't melt at all until the temperature rises.
You could possibly arrange an experiment for different substances to melt and boil at the same time, but they would not do so at the same temperature. Different substances have different properties, they do not all melt and boil at the same temperature.