An organic compound containing 40.1% carbon and 6.6% hydrogen has an empirical formula of?
C2H4O2
C2H3O2
CH2O
CH3O
Correct answer is C
Carbon Hydrogen
40.1..........................6.67
(3.342) / (3.342).............(6.67) / (3.342)
1 1.9958
1 Ω 2
CH2O
hydroxyl group
carboalkoxyl group
carbonyl group
carboxyl group
Correct answer is D
No explanation has been provided for this answer.
Mfecane in South Africa happened between ____________
1815-1880
1815-1840
1935-1945
1935-1948
Correct answer is B
Mfecane happened in Southern Africa during the period between 1815 to 1840, thus, easing the way for white expansion into Natal and the High-veld.
The expansion of white communities in South Africa is a major cause of _______
The great trek
Racial war
African unionism
The great war
Correct answer is A
The great trek starting in 1836 in southern Africa, was a mass migration of Dutch-speaking inhabitants of British run Cape colony, who left the Cape and travelled eastward by wagon train to the interior of the continent to live beyond the reach of British colonial rule.
The main reason Liberia and Ethiopia was not colonized is
The former is a strong country with thriving empire while the later is a country
The latter is a strong country with thriving empire while the former is a country for freed American slave
The former is a Christian made nation while the latter is a mixed giving it freedom from colonial lord
The latter surrender fast while the former surrender later
Correct answer is B
The Italian had attempted many times to colonize Ethiopia, but all attempts failed due to Ethiopia military strength and location, while Liberia was formed as a home for freed American slaves.