Plants grow over time by balancing two chemical reactions: photosynthesis and cellular respiration. Plants use the products of p
hotosynthesis as the reactants of cellular respiration.
Photosynthesis: 6CO2 + 6H2O + energy C6H12O6 + 6O2
Which is the chemical equation representing cellular respiration?
A. 6H2O + energy C6H12O6 + 6O2
B. C6H12O6 + 6O2 6CO2 + energy
C. 6CO2 + 6H2O + energy C6H12O6 + 6O2
D. C6H12O6 + 6O2 6CO2 + 6H2O + energy
Photosynthesis: 6CO2 + 6H2O + energy C6H12O6 + 6O2
Which is the chemical equation representing cellular respiration?
A. 6H2O + energy C6H12O6 + 6O2
B. C6H12O6 + 6O2 6CO2 + energy
C. 6CO2 + 6H2O + energy C6H12O6 + 6O2
D. C6H12O6 + 6O2 6CO2 + 6H2O + energy
1 answer:
The answer to that I think would be D because:
A is wrong because it doesn't make sense the way the order it is in,
B doesn't make sense because it is in the wrong order, and
C says the same exact thing that photosynthesis says which would mean that it is representing the photosynthesis equation not the chemical equation for cellular respiration.
Also it is D because D shows the correct way that the chemical equation representing cellular respiration is supposed to be in.
Hope this helped!
A is wrong because it doesn't make sense the way the order it is in,
B doesn't make sense because it is in the wrong order, and
C says the same exact thing that photosynthesis says which would mean that it is representing the photosynthesis equation not the chemical equation for cellular respiration.
Also it is D because D shows the correct way that the chemical equation representing cellular respiration is supposed to be in.
Hope this helped!
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Answer:
4.1 eV
Explanation:
Kinetic energy, K = 0.8 eV = 0.8 x 1.6 x 10^-19 J = 1.28 x 10^-19 J
wavelength, λ = 253.5 nm = 253.5 x 10^-9 m
According to the Einstein energy equation
Where, E be the energy incident, Wo is the work function and K is the kinetic energy.
h = 6.634 x 10^-34 Js
c = 3 x 10^8 m/s
So, the work function, Wo = E - K
Wo = 7.85 x 10^-19 - 1.28 x 10^-19
Wo = 6.57 x 10^-19 J
Wo = 4.1 eV
Thus, the work function of the metal is 4.1 eV.