Those elements with similar properties are in the same column.
If you can provide the reaction you are looking at, then we can provide a more satisfactory answer.
If the forward reaction is exothermic, then reducing the temperature where the reaction occurs will shift the equilibrium towards the right. This is because exothermic reactions release heat, and this will counteract the change as stated in Le Chatelier's Principle.
If the forward reaction is endothermic, then reducing the temperature will shift to the left. This occurs as the backward reaction is the exothermic reaction, and by Le Chatelier's Principle, the reaction will favor the reaction that produces more in to counter a reduction in temperature, in this case the backward direction reaction.
Answer:
The option which best describes the riders is :
Gabriella is slowing down at the same rate that Kendall is speeding up, and Franklin is not accelerating
Explanation:
Franklin is not accelerating as the final velocity (50 km/h) is equal to the initial velocity (50 km/h) , rather he is moving at a constant speed.
Acceleration = (final velocity - initial velocity) / (final time - initial time)
According to acceleration formula given above , the rate at which Gabriella is slowing down is 2.3 km/h and the rate at which Kendall is speeding up is also 2.3 km/h.
Hence the option stating "Gabriella is is slowing down at the same rate that Kendall is speeding up and Franklin is not accelerating" is true and it best describes the riders.
Molarity is defined as the number of moles in 1 L of solution
number of moles of sodium acetate is - 8.56 g / 82.03 g/mol = 0.104 mol
number of acetate moles in 750.0 mL - 0.104 mol
then number of acetate moles in 1000 mL - 0.104 mol / 0.7500 L = 0.139 mol/L
molarity of sodium acetate is 0.139 M
Ar is classified as Argon in the periodic table it is a Noble gas having atomic number 18