since is says plural promise(s) i pick b. all of the above. because you cant just pick one its clever word play
CH4 + 02 → H20 + CO2
balance equation
CH4 + 2O2 → 2H2O + CO2
4 ÷ ( 12 + 4 ) = 0.25 mol
1 : 2
no mole of H2O = 0.25 × 2 = 0.5 mol
mass of H2O = 0.5 × ( 2 + 16 ) = 9g
The answer is B all the others would be helpful
Answer:
b) Caucasus
Explanation:
<u>Caucasus mountains are occupying the place between Europe and Asia, going from the Black Sea and the Caspian sea.</u> As Afghanistan is in central Asia, <u>we can conclude that the Caucasus is on the west of the country - all the mentioned elements (Europe, Caspian, and Black sea) are located on the west side of Afghanistan. </u>
Ural mountains are in Russia, on the north side of Afghanistan.
Kunlun mountains are located in central China, which means it is located on the east compared to the position of Afghanistan.
Altai mountains are located in Mongolia, which is north-east of Afghanistan.
