Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion.
Adult Bone Marrow has stem cells that are not as "good" as embryonic ones but they still can become red blood and skin cells
Answer:
375.2 kJ
Explanation:
- H₂(g) +F₂(g) → 2HF(g) +536kJ
The information the equation above provides lets us know that when 2 mol of hydrogen fluoride (HF) are produced, 536 kJ of energy (as heat) is produced.
We can then <u>state a rule of three</u>:
And <u>solve for X</u>:
- X = 1.4 mol * 536 kJ / 2 mol
Answer: The temperature rise is 
Explanation:
The quantity of heat required to raise the temperature of a substance by one degree Celsius is called the specific heat capacity.
Q = Heat absorbed by ice = 5280 J
m = mass of ice = 2.40 kg = 2400 g (1kg=1000g)
c = heat capacity of water = 
Initial temperature = 
Final temperature = 
Change in temperature ,
Putting in the values, we get:
Thus the temperature rise is
Answer:
It depends.
Explanation:
Generally, the presence of more landmasses in the Northern Hemisphere produces continental climates with extreme temperatures that are relatively rare in the Southern Hemisphere due to the abundance of oceans at the southern latitudes north of Antarctica.
If a city has average rainfall and warm temperatures in the Northern Hemisphere, it is logical to assume that, on average, a city at the same distance from the equator in the Southern Hemisphere would have slightly cooler temperatures and more rainfall due to the enhanced maritime effect.
This depends, of course, entirely on the local geography of the city in question, and the results could be completely different based on the actual city given.
