The compound's name is butan-2-ol: four carbons in the chain means the compound has the but- prefix; the alcohol group is on the second carbon, so the compound has the …
Ionisation energy decreases down the group. This is because the atomic radii also inrease down the group, making the removal of an electron from the valence shell of an atom …
The easiest way to understand ionisation energy is to look at the equation for ionisation.For example, the ionisation of magnesium is shown by the following:Mg---> Mg+ + e- …
Make the student observe and analyse the electronic configuration of sodium and the trends in ionization energies for this element. We note a large increase in ionization energy between the …
This is due to the number of electrons in the outer shell of their atoms. Their outer shell is full, meaning it is difficult for them to give or take …
As temperature increases more particles posses energy equal to or greater than activation energy. Due to that, particles collide more often increasing rate of reaction.
Benzene consists of six carbon atoms in a hexagonal ring, all of which are sp^2 hybridised. This allows the perpendicularly oriented 'p' orbital of each carbon to overlap laterally all …
The molecular geometry deals with the position of the nucleus of the different atoms in the molecule whereas the electron geometry deals with the position of the orbitals. Electron geometry …
Draw a diagram of PH3Hybridisation: sp3
(The answer really depends on the level of the student, hence more or less explanation might be needed.)The VSEPR (Valence Shell Electron Pair Repulsion) theory is used within chemistry to …
Nitrogen has atomic number 7; so, when neutral, it has 7 electrons . Those electrons are organized according to the Aufbau principle in an electronic configuration of 1s2 2s …
The atomic radius is often defined as being one half the distance between the two nuclei in a homonucleur diatomic molecule. In general, there is a decrease in atomic radius …
P4 (s) + 3OH- (aq) + 3H2O(l) ---> PH3 (g) + 3H2PO2-(aq) Provided for answering (a): Mass of white phosphorus: …
The frequency of collisionskinetic energy of particlescollision geometry (orientation)
Ionisation energy increases overall because nuclear charge increases with no significant increase in shielding, so it becomes more difficult to remove the outer electron.Ionisation energy decreases going from beryllium to …
butan-2-ol --?→ X --Br2→ 1,2-dibromobutane(a) State the name and draw the structural formula of X(b) State an equation and the conditions needed for the conversion of butan-2-ol into …
Bronsted-Lowry theory: Acid is a proton donor (H+) and base is a proton acceptor, i.e NH3(aq) + H2O (l) ⇌ NH4+ (aq) …
More energy is required to remove successive electrons from an ion with an increasing positive charge. There is large increases in ionization energy when the 2nd and 10th electrons are …
When considering the optimal reaction conditions, one must check for pressure, temperature, concentration and catalysts involved. Le Chatelier's principle states that if a change to the system is made, the …
First, we have to convert the starting measurements for the HCl and CaCO3 content into moles so we can compare the ratios to the formula. 40cm^3=0.04dm^30.04dm^32.5mol.dm^-3=0.1 moles of HClmass/molar …