One way to tell if a substance is magnetized to hold something metal next to it. Some other tools are listed on this site: http://www.lessemf.com/dcgauss.html
One way to tell if something is alkaline is by using pH test strips or a pH meter to measure the pH level of the substance. If the pH is above 7, it indicates alkalinity. Another method is to observe if the substance feels slippery, which is a common characteristic of alkaline solutions.
Chromatography is one way.
No. Only a hand-full of metals can be magnetized, for example iron, nickel and cobalt.
The only way to prevent parts from being magnetized during resistance welding is by using the process of magnetic shielding. With the shielding process, objects are surrounded with material to generate a flow that avoids the opposite poles from becoming magnetized.
When something becomes magnetized, its atoms align in a way that creates a magnetic field. This can attract or repel other magnetic materials and potentially create a new magnetic material.
One way to tell if it really is one is : Tell a joke. If he is a skinwalker, he will laugh and turn back into a human.
There is only one way to tell: you have ask her.
because one of them is pointing one way and the other the other way
Percent mixture is a way the amount of one substance is in a mixture. Example: a 25% mixture of salt with flour.
The best way to tell varies from one person to another. However, the timing and the environment that you use to tell should be considered irrespective of the information you want to tell.
The number has to be labeled. If the person who printed the number there didn't tell which one it is, then you have no way to tell.
One quick way to tell whether or not a cell is dividing is to look at the number of chromosomes. If the number is doubled then it is dividing.