Answer:
They have the same number of atoms
Explanation:
The mole (symbol: mol) is the base unit of amount of substance.
Think of mole meaning like inch. An inch of grass is the same as an inch of a flower. Mole is the standard measuring unit of atoms.
If black balls are carbon atoms and white balls are hydrogen atoms then the given structure is of PROPANE
(Make sure to mention what exactly balls are?)
Answer: The density, mass, and weight of the iron block make it difficult to lift than a cork block.
Explanation:
Answer:
The enthalpy change for the reaction is ΔH = - 54.3 kJ/mol
Explanation:
The reaction between HCl and NaOH is a neutralization reaction:
Heat released during neutralization = Heat gained by water
i.e.
where:
m = total mass of solution
ΔT = change in temperature = 22.8 - 21.5 = 1.3 C
c = specific heat = 4.18 J/g C
As per equation (1): qrxn = -434.7 J
The reaction enthalpy ΔH is the heat released per mole of acid (or base)
Answer:
from deep within the earth or its core