You have to switch the elements based in if they're metals/nonmetals. so nonmetals switch with each other and metals switch with each other.
AB + CD ---> AC + BD
Answer:
For finding frequency, we need to first find the period of the graph.
The period of a sinusoidal graph is the time interval in which it repeats its pattern.
In the graph, we can see, after time, it repeats its pattern.
Hence the period of the graph is .
Now we need to find its frequency
The formula for frequency is
This is the answer
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Answer:
Scientists use the term magma for molten rock that is underground and lava for molten rock that breaks through the Earth's surface.