Answer:
5.6 L of hydrogen
Explanation:
when 5.6 liter is added of hydrogen, the value equallify and becomes right
"B. purple" is the correct answer.
Answer:
Yes, electrons with energy of 1.3ev will be emitted from the metal surface
Explanation:
From Eisenstein's photoelectric equation;
KE= E - Wo
Where;
KE= kinetic energy of the emitted photoelectron = ??
E= Energy of the photon =4.5 ev
Wo= work function of the metal = 3.2ev
KE= 4.5 ev - 3.2 ev
KE= 1.3 ev
A) The half-life of reactants in a nuclear decay reaction remains constant over time, but the mass of reactants that are consumed decreases
Explanation:
The rate at which elements decays radioactively is directly proportional to the number of atoms present in it. This is a simple first-order kinetics.
The half-life of a radioactive element is the time taken for half of the radioactive nuclei to disintegrates.
The shorter the half life, the larger the decay constant and the faster the decay process. If a radioactive decay is fast, the mass of the reactants will decrease significantly with time thereby producing more of the daughter isotopes.
The reactant in a radioactive decay are the parent isotopes. The products are the daughter isotopes.
Learn more:
Half-life brainly.com/question/1695370
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Answer:
0.030
Explanation:
Step 1: Write the balanced reaction at equilibrium
CaCO₃(s) ⇌ CaO(s) + CO₂(g)
Step 2: Calculate the concentration equilibrium constant
The concentration equilibrium constant (Kc) is equal to the product of the concentrations of the products raised to their stoichiometric coefficients divided by the product of the concentrations of the reactants raised to their stoichiometric coefficients. It doesn't include solids or pure liquids.
Kc = [CO₂] = 0.030
