Answer:
No effect.
Explanation:
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In this case, considering the widely studied Le Chatelier's principle, we can realize that the factors affecting equilibrium are concentration, temperature and pressure and volume if the reaction is in gaseous phase and with non-zero change in the number of moles. In such a way, by adding a catalyst to given reaction will have no effect on the equilibrium direction.
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The relationship between energy and wavelength is shown by:
E = hc/wavelength
As we can see, there is an inverse relation between energy and the wavelength. The greater the energy, the shorter the wavelength. Among the mechanical waves listed, at the wavelength of 7 cm.
Answer:
Option D. the frequency of molecular collisions increases
Explanation:
Collision theory states that for a reaction to occur, the reactant particles must collide with the right orientation. With this knowledge, increasing the concentration of the reactants will increase the rate of the reaction as the reactant particles will collide frequently because the reactant particles are entirely every in the reaction vessel. This create room for easy collisions which in turn speed up the reaction rate.
Molar mass of empirical formula = 172.8 g/mole
346.6g/172.8 g/mole = 2.00 moles
Molecular formula = C2H2Br4