Put the mixture in water, the pebbles will sink, the pepper will float, and the sugar will dissolve
The molar mass of calcium carbonate is 100 mg/mmol, so the
number of moles is:
moles CaCO3 = 500 mg / (100 mg/mmol) = 5 mmol
We see that there is 1 mole of Ca per 1 mole of CaCO3,
therefore:
<span>mass Ca = 5 mmol * (40.08 mg/mmol) = 200.22 mg</span>
Properties which repeat in an order.
In a group,the ionization energy decreases because the atomic size increases(no. of shells increases, therefore due to this, there's a weak attractive force between nucleus and the valence electrons)
1 bulb b and c wouldn't shine if ac. if DC then yes. 2 a would shine and c wouldn't if DC if ac then yes
