Answer:
An alloy is a metal made up of multiple metals giving it more strength.
Some examples may be a cast iron pot, rings, stainless steel sinks, instruments like the saxophone, door knobs, some keys, and some tools. Hope this helps some :)
Explanation:
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D highland
-112 Kj/mole (diprotic acid)
The answer is 70 I guess. Hope this helps :)
B) System.
It is a group of parts working together. They work together to make a whole, therefore they are all a system when working together.
