Answer:
2 moles CO2
Explanation:
According to the stoichiometric ratio the mole ratio of CaCO3:CO2 is 1:1
Therefore the moles of CO2 = 2 * (1/1)
= 2 mol CO2
Answer:
Over 500,000 cases of polio were reported between 1930 and 1950, and the actual ... The remaining children were divided into two groups
Explanation:
Answer:
When the flashlight is turned on, the chemical energy is first transformed into electrical energy and then into light energy. CHEMICAL bonds. It is released during a chemical reaction (change). by flowing electrons (negatively charged particles).
Answer : The frequency of a photon of radiation is,
Explanation : Given,
Wavelength of the radiation = 670.8 nm
First we have to convert wavelength form 'nm' to 'm'.
Conversion used :
So, the wavelength of the radiation = 670.8 nm =
Now we have to calculate the frequency of a photon of radiation.
Formula used :
where,
= frequency of a photon of radiation
= wavelength of the radiation
c = speed of light =
Now put all the given values in the above formula, we get the frequency of a photon of radiation.
Therefore, the frequency of a photon of radiation is,
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Among the choices the answer should be <span>2-bromo 2-phenylsince benzyllic carbocation is highly stable.</span>