Answer:
Cohesion
Explanation:
Cohesion tension theory of water movement up the tree vessels
Cohesion is the term used to describe the binding forces present in water molecules through hydrogen bonds as such the water molecules have considerable tensile strenghth allowing them to be pulled up into the leaves of plants through the tree vessels without breakage as longitutudinal stress are placed on the water as it is pulled up
Answer:
Potassium
Explanation:
In group one of the periodic table both the melting and the boiling points usually decrease down the group.
Now, down the group, it's lithium that comes first, then sodium, then potassium.
Thus, among the 3, potassium is furthermost down the group by virtue of the factor it has the highest atomic number.
Therefore, we can say that potassium has the lowest boiling point among the 3.
Crust, mantle, outer core, inner core.
Answer:
127 grams K
Explanation:
To find the mass of potassium (K), you need to multiply the given moles by the atomic mass of potassium. The atomic mass exists as a ratio comparing the mass of 1 potassium atom per 1 mole. It is important to arrange this ratio in a way that allows for the cancellation of units. The final answer should have 3 significant figures.
Atomic Mass (K): 39.098 g/mol
3.25 moles K 39.098 grams
----------------------- x ------------------------- = 127 grams K
1 mole