Get the molar mass of each element and since there are two S for each Br, make it 2x32.06 + 1x79.90 and then for S2, you would get 64.12/144.02 which is 44.52% S2 and then 55.48% Br
According to the kinetic molecular theory, the pressure of a gas in a container will increase if the "number of collisions with the container wall increases".
<u>Option: A</u>
<u>Explanation:</u>
Pressure is characterized as force acting by area per unit. It is triggered by gas molecules bombarding on the container walls. Kinetic molecular theory suggests that gases are made up of large numbers of small particles with continuous movement. Here there are elastic collisions between gas particles and between particles and container walls. There are no forces of attraction among them because of the large spaces between the gas particles. The gas temperature relies on the particle's average kinetic energy.
Answer:
option b is correct
Explanation:
Taking the Van't Hoff equation
d ln Keq / dT = ΔH/(RT²)
then
Keq increases with increasing temperature (d ln Keq / dT>0) when ΔH>0 and decreases with increasing temperature (d ln Keq / dT<0) when ΔH<0
if Keq decreases (reactions shift toward reactants) from 7.9×10³ to 0.77 when temperature increases from 298 K to 713 K (d ln Keq / dT<0) → ΔH<0 ( exothermic reaction)
therefore option b is correct
Answer:
The ratio of aluminium and oxygen ions that only exists is 2:3
Since Aluminium has <u>3 valence electrons</u> and oxygen has <u>2 vacant orbitals</u>
Aluminium holds a valence of 3 and oxygen 2, when they react a compound of formula
is formed