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Answer:
Explanation:
Gold (111) Chloride:
AuCl₃
The oxidation state of gold is +3.
Chlorine is present in group seventeen and have seven valance electrons . Thus it accept one electron to complete the octet and show oxidation state -1.
When it react with gold(III) three chlorine atoms are combine with one gold atom to make compound overall neutral.
Calcium Carbonate:
CaCO₃
Carbonate formula is CO₃²⁻ . It means it carry -2 charge . Calcium is present in group two. It has two valance electrons and lose them to get complete octet thus shows +2 oxidation state.
When it combine with carbonate the overall compound is neutral because -2 and +2 charges cancel each other.
Hydrobromic Acid
HBr
Hydrogen has one electron while bromine has seven valance electrons. Bromine require one more electron to complete the octet. It react with hydrogen by sharing of one electron of hydrogen and form polar covalent compound.
Answer:
The energy of a wave is inversely proportional to the wavelength of the wave.
As wavelength increases, the energy of the wave decreases.
As wavelength decreases, the energy of the wave increases.
Explanation:
The energy of a wave is directly proportional to the wave's frequency. As frequency increases, so does the energy of the wave.
(energy 
is proportional to frequency 
)
<u>How is this related to wavelength?</u>
Frequency is inversely proportional to wavelength. That means that as frequency increases, wavelength decreases and as frequency decreases, wavelength increases.
(frequency is inversely proportional to wavelength 
)
Therefore, as wavelength increases, the energy of a wave decreases and as wavelength decreases, the energy of a wave increases.
Answer:
H2SO4(aq) + Mg(OH)2(aq) -> MgSO4(aq) + 2H2O(l)
Explanation:
A neutralization reaction is a chemical reaction in which the acid, (aqeous H2SO4) reacts completely with an appropriate amount of base, (aqueous Mg(OH)2) to produce salt, (aqueous MgSO4) and water, (liquid 2H2O) only.
H2SO4(aq) + Mg(OH)2(aq) -> MgSO4(aq) + 2H2O(l)
Acid + base → Salt + Water.
During this reaction, the hydrogen ion, H+, from the H2SO4 is neutralized by the hydroxide ion, OH-, from the Mg(OH)2 to form the water molecule, H2O.
Thus, the formation of salt, MgSO4(aq) and water, 2H2O(l) makes it a neutralization reaction.
