Answer:
Ans: Across a row, the nuclear charge increases while the shielding effect of the inner core remains the same. According to Coulomb's law, increasing nuclear charge creates a greater force, so the valence electrons are held more tightly. The greater the ionization energy, the more difficult it is to remove an electron.
Explanation:
It has been demonstrated that water adds rapidly to the carbonyl function of aldehydes and ketones to form geminal-diol. In a similar reaction alcohols add reversibly to aldehydes and ketones to form hemiacetals (hemi, Greek, half). This reaction can continue by adding another alcohol to form an acetal.
A. The Average Ecological footprint will need to decrease . 6-11-18
Answer:
-4.278 ×10³ kJ
Explanation:
The equation of the reaction is as follows:
The volume of acetone = 177mL
the density of acetone = 0.788 g/mL
Now;
To determine the mass of acetone ; we use the relation
mass = density × volume
mass = 177 mL × 0.788 g/mL
mass = 1.39 × 10² g
Since number of moles =
number of moles of acetone =
number of moles of acetone = 2.39 moles
Given that -1790 kJ of heat is released for one mole of combustion of acetone. To calculate the amount of heat released with 2.39 moles of acetone; we have:
= -4278.1 J
= -4.278 ×10³ kJ