The Coriolis Effect describes the turn of the wind to the right in the Northern Hemisphere caused by earth's rotation.
Answer:
1. C
2. C
3. A
4. C
5. True
6. C
Explanation:
1. C The answer is conduction because the heat was transferred through direct contact.
2. C The answer convection because the heat was transferred through a medium (liquid/gas).
3. A The answer is conduction because the heat was transferred through direct contact.
4. C The answer is radiation because the heat was transferred through thermal emission.
5. True. This is because the air that is warmed rises, causing the cool air to replace it. You can picture it like the scenario in question 2.
6. C
Answer:
29.92grams of PbSO4
Explanation:
lead (iV) oxide = PbO2 = Molar mass: 239.2 g/mol
lead (ll) sulfate = PbSO4 = Molar mass: 303.26 g/mol
PbO2 = PbSO4
1:1 ratio
Pb = Lead
Lead has an oxidation number of 4+
O = Oxygen
Oxygen has an oxidation number of 2-
PbO2 + 4H+ + SO4 2- + 2e- = PbSO4(s) + 2H2O
Ok so the above would be the likely complete reaction, though we don't really need this as we already know the ratio is 1:1.
23.6g of PbO2
23.6/239.2 = 0.09866 Moles of PbO2
Since we have a 1:1 ratio we know that the same number of moles of PbSO4 are produced and since we know the molar mass it's simply molar mass multiplied by number of moles.
303.26 x 0.09866 = 29.92grams of PbSO4
