Answer:
Gold is an element even when it is in a solution
This property allows water to be very good at separating ionic solids because of the polar moment which attaches to the positive and negative molecules, respectively.
<u>Remember</u>: water is the most polar solvent.
Answer:
option 4 - it can have different compositions, and it has a set of characteristics that change.
Answer:
36.92 mg of oxygen required for bio-degradation.
Explanation:
Mass of benzene = 30 mg = 0.03 g (1000 mg = 1 g )
Moles benzene =
According to reaction 5 moles of benzene reacts with 15 moles of oxygen gas.
Then 0.0003846 mol of benzene will react with:
of oxygen gas
Mass of 0.0011538 moles of oxygen gas:
0.0011538 mol × 32 g/mol = 0.03692 g = 36.92 mg
36.92 mg of oxygen required for bio-degradation.