Answer:
Explanation:
Hello,
In this case, by using the ideal gas equation, we first compute the moles of oxygen at the given volume, pressure and temperature:
Then, since molar mass of gaseous oxygen is 32 g/mol, we compute the contained mass in grams as shown below:
Best regards.
The hammered bananas will undergo a physical change when hammered, and both a physical and chemical change when put into liquid nitrogen. The will freeze and harden, causing them to be solidified once again, yet their temperature will lower exponentially, causing them to freeze. Physical change is when it hardens and the temperature drops. chemical when it freezes.
<span>Crude
oil is mainly made of various polymers with varying sizes of chains. Distillation process separates these elements by their boiling points. The longer
the polymer chain of a particular element in the crude oil, the higher its boiling
point and <span>vice-versa</span></span>
Now, question is why MgO but not CaO.
At a dissociation pressure of 1 atm, the temperature at which CO2 and metal oxide is formed is :
For MgCO3 = 540 °C
For CaCO3 = 900 °C”
Also,
<span>The driving force is the larger lattice energy of MgO(3795) vs that of CaO(3414 kJ mol^-1) . More the lattice energy, the more chances of that compound to form.</span>
So MgO is formed first.
Carbonate is Calcium carbonate
