Answer:
The student needs to increase the length of the heating element
Explanation:
Increasing the length of the heating elements helps to increase the surface area of the heating elements which allows for more water to come in contact with the heating element
Answer: There is no list in your question. But the three factors in which natural selection occurs are:
1. A struggle for existence,
2. Variation and
3. Inheritance
Explanation:
Darwin’s theory of natural selection is the way in which organisms change overtime.
These changes allow organisms to become better adapted to their environment and increase their chances for survival.
The three major factors through which natural selection occurs are:
1. A struggle for existence,
2. Variation and
3. Inheritance
Darwin’s theory of natural selection will occur if the three conditions above are met and unless these factors are in place, natural selection will not occur.
Molarity of solution = 0.08 M
<h3>Further explanation </h3>
Molarity shows the number of moles of solute in every 1 liter of solution or mmol in each ml of solution
Where
M = Molarity
n = number of moles of solute
V = Volume of solution
Volume of solution = 100 ml + 150 ml = 250 ml
Answer:
Here are key points on lattice energy
Lattice energy (L.E) is the energy required to separate a mole of an ionic solid into gaseous ions.
• L. E cannot be measured empirically, but it can be estimated using the Born-Haber cycle or calculated using electrostatics.
• The charge and radius of the bonded ions are two main factors that contribute to the magnitude of the L.E.
Explanation:
About the trend Yes/No are included to the details.
a)
1. True - (as charge increases, lattice energy increases)
2. False - (Oxide and chloride both have -1 charge)
3. False (The chloride ion is bigger having a bigger radius)
4. False - (the charges quoted are incorrect )
5. True
(b)
1. True - (it has the smallest radius)
2. True
3. False (the ion in all are +1 and -1)
4. False
5. False
6. False
(c)
1. False - ( BaO +2 and -2 while KF +1 and -1)
1. False - ( BaO +2 and -2 while KF +1 and -1)
2. True
3. False
4. True
5. True
