Answer and Explanation:
Polar compounds are those that have an unequal sharing of electrons, causing one end to be more positively or negatively charged than the other end.
Ionic compounds are those that are made up of a positive ion and a negative ion. Clearly, we can see that if one ion is positive and the other is negative, then that would make one end of the compound more or less positively charged than the other end, which is exactly the definition of a polar compound.
That is why ionic compounds are always polar.
The pressure in atm is calculated as follows
1 KPa pressure = 0.00986923 atm
what about 739 KPa is equal to how many atm\
that is 739KPa x 0.00986923atm/ 1KPa= 7.2933 atm
When the supply of air or oxygen is poor
Metals become ionic and release hydrogen in free form.
hope it help you.
Answer:
The barrier for activation energy will be lower.
Explanation:
As we know the minimum amount of energy required by the reactants to convert into products is called as Activation energy. Until this energy is attained the reactants fail to transform into products. Also, the lower the activation energy is, the greater will be the rate of reaction. Hence, a catalyst is employed in order decrease the activation energy.
Catalyst through different mechanism lowers the activation energy. Some of which are listed as,
1) By weaknening the bonds of reactants
2) By providing different pathway
3) By providing surface area
4) By holding close together the reactants
Below is a energy diagram of same reaction carried out in the presence of catalyst (Red) and absence of catalyst (Blue).