Answer:
the frequency of light is

Explanation:
from v = λf
speed of light in air, v = 3.0*10^8ms^-1
Answer:
The compound with the correct formula is;
A. MNO₃
Explanation:
The number of oxidation states in the metal, M = One oxidation state
The formula of the compound formed by the metal, M = MHCO₃
We note that the ion HCO₃⁻, known as hydrogen carbonate has an oxidation number of -1
Similarly nitrate, NO₃⁻ has an oxidation number of -1, therefore, the metal M can form similar compound formed with HCO₃⁻ with nitrate, and we have;
The possible compounds formed by the metal 'M' includes MHCO₃ and MNO₃.
Carbon Dioxide is a compound gas
Carbon Dioxide is a gas produced by burning carbon and organic compounds and by respiration.
Yes I think yesi,m not really suer
3Mg + N₂ = Mg₃N₂
Mg₃N₂
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