Elements are composed of single atoms and compounds are composed of different elements.
<u>Explanation:</u>
A single atom generally forms an element. It is an individual particle or atom present in the periodic table, mostly it refers with symbol. When two or more elements of different types or same types combine together, it is called as compound.
The compounds can be heterogeneous compounds and homogeneous compounds. Depending upon the combination of elements, this classification is done for compounds. The elements can form a compound by ionic, covalent, metallic or hydrogen bonding. The molecules can also be termed as compounds.
Answer:
A convex mirror is a diverging mirror (f is negative) and forms only one type of image. It is a case 3 image—one that is upright and smaller than the object, just as for diverging lenses.
Explanation:
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Answer:
Both the technicians B is correct.
Explanation:
For delicate work on circuit boards the soldering iron is suitable for working because it has various sizes of iron light is weight and applies no almost force on the work piece. Whereas the solder gun forces the molten filling solder on to the work piece.
The soldering torch directly releases flame on the work piece and produces high heat so it heats the work piece faster. While a soldering iron heats up slowly and uniformly.
U=1/2kx2
This image sums it up