First one I believe is 5.
2nd is given already
3rd is 1
4th is 2
<span>The reaction rate increases.
Why </span><span>Well a catalyst usually lower the activation barrier in an energy diagram. The lower and smaller that gap means the reaction is taking place rapidly compared to when that activation barrier gap is higher. </span>
Answer:
ridge push and slab pull
Explanation:
there are two processes through to be responsible for the spreading seen at mid ocean ridges and there is some uncertainty as to which is dominant. ridge push occurs when the weight of the ridge pushes at the rest of tectonic plate away from the ridge often towards a subduction zone. hope this helped
Answer : the statement that is true about the atom is It is present in the second group of the periodic table.
Explanation :
The Lewis dot model shows the number of valence electrons present in the atom.
Since the given metal has 2 dots, it indicates that the metal atom must have 2 electrons in its outermost shell.
Therefore option 2 : It has two electrons in the innermost energy level, is wrong because it contains 2 electrons in the outermost energy level
Option 1 : It is most likely to form covalent bonds is also wrong because a metal atom always forms ionic bond
Option 3 : It requires six other atoms to form a stable compound, is also wrong as the metal can form a stable compound by donating its 2 electrons to a non metal.
On periodic table, representative elements are arranged in groups based on their valence electrons. Therefore by knowing the outermost electrons, we can predict the group in which the element can be categorized.
Since the given metal atom contains 2 electrons, it must be present is second group.
Therefore the statement that is true about the atom is It is present in the second group of the periodic table.
