Venters Contribution to science is the invention of a synthetic cell
Answer:
D) ultraviolet
Explanation:
Out of these, ultraviolet have the highest frequency.
The order of frequency from highest to lowest is gamma rays, x-rays, ultraviolet, visible light, infared, microwave, radio.
Ionic bond are formed between a metal and a non metal while covalent bonds are formed between two non metals.
ionic compounds include
Na-cl, Mg-Br, Ca-s, Ba-F (are ionic since their bond is between a metal and non metal)
covalent bonds include
O-H, N-O, C-H, F-F, N-H , C-O, F-F ( are covalent since their bond is between two non metal
Explanation:
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Answer:
C. copper.
Explanation:
- The atom which loses electrons (its oxidation sate be more positive) is the atom that is oxidized.
- While, the atom which gains electrons (its oxidation sate be more negative) is the atom that is reduced.
It is oxidation sate is changed from (+5) in the reactants (NO₃⁻) to (+4) in the products (NO₂). N gains 1 electron
So, it is reduced.
It is oxidation sate is the same (-2) in the reactants (NO₃⁻) and (-2) in the products (NO₂).
<em>So, it is neither be oxidized nor reduced.</em>
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It is oxidation sate is changed (0) in the reactants (Cu) to (+2) in the products (Cu²⁺). Cu loses 2 electrons.
<em>So, it is oxidized.</em>
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It is oxidation sate is the same (+1) in the reactants (H⁺) and (+1) in the products (H₂O).
<em>So, it is neither be oxidized nor reduced.</em>
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