Answer:
Net force.
Explanation:
Net force is the total force exerted on an object by another object.
Answer: Option (A) is the correct answer.
Explanation:
When we increase he temperature then the molecules of sugar ans water will start to vibrate with more energy.
As a result, sugar molecules will spread widely into the water and thus, they will start to dissolve. So, sugar molecules being polar in nature will dissolve easily in polar solve (water) as like dissolve like.
Thus, we can conclude that the action of increasing the water temperature would make sugar more soluble in water.
Answer: biotic factors or biotic factors
Explanation:
Answer:
4 mol of lithium nitride would be produced
Explanation:
6Li + N2 → 2Li3N
This equation means that 6 mol of lithium are reacted with 1 mol of nitrogen to make, 2 mol of lithium nitride.
So this is the rule of three to find out, how many moles of lithium nitride are been made, from 12 mol of Li.
6 Li _____ 2 Li3N
12 Li ________ (12. 2) / 6 = 4 moles
What mass of the following chemicals is needed to make the solutions indicated?
Answer:
271.6g
Explanation:
The mass of the chemicals need to make the needed solution can be derived by obtaining the number of moles first.
Given parameters:
Volume of solution = 1L
Molarity of HgCl₂ = 1M
number of moles of HgCl₂ = molarity of solution x volume
= 1 x 1
= 1 mole
From;
Mass of a substance = number of moles x molar mass;
we can find mass;
Molar mass of HgCl₂ = 200.6 + 2(35.5) = 271.6g/mol
Mass of the substance = 1 x 271.6 = 271.6g
