Answer:
A
Explanation:
When a temperature increases particles tend to collide with each other often as they gain kinetic energy making them collide much more often and they'll collide with more energy due to the increase of kinetic energy
The balanced chemical reaction has equal number of atoms in reactant side as well as product side.
The balanced chemical reactions is as follows.
1.
2.
3.
4.
NaOH + H2SO4 ‐‐> 2H2O + Na2SO4;
it is hard.. harder than some natural gems
answer is gold
bcz gold is having a property of malleable so it can be drawn into thin sheets
two transitions elements are iron and cobalt