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A lawn mower works by converting chemical energy (energy stored in the gas) to mechanical energy.
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Answer:
A. SO4 2−
Explanation:
SO₄²⁻
A covalent bond is a bond that forms from sharing of electrons between two atoms. Here, the two atoms combined must have a very low electronegative difference between them, usually 0. Electronegativity deals with the tendency of an atom to attract electrons to itself.
Oxygen and sulfur shows similar tendencies. Since the two atoms shows a strong affinity for their valence electrons in order to complete the octet. This will lead to the eventual sharing of the valence electrons.
"X" in the reaction above is acetic acid with a chemical formula CH3COOH. The chemical reaction would be NaOH + CH3COOH = NaCH3COO + H2O. This is a neutralization reaction in which it produces a salt and water. The salt produced is called sodium acetate.
Answer:
The wavelength is the distance from the peak of one wave to the peak of the next.
Explanation:
The wavelength of UV light ranges from 10 nm to 400 nm.
We can’t see UV light because our eyes can detect only light with wavelengths between 400 nm (violet) and 700 nm (red).
