BARISERE KPOOBARI GBARABE

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Barisere Kpoobari provided a contribution 2 years ago

2C2H2(g) + 5O2(g) → 4CO2(g) + 2H2O(g)In the reaction above, the mass of carbon… | Chemistry Past Questions

according to the reaction,52g of ethyne require 176g of CO2.

52g_____________176g

78g_____________176/52 X 78/1

3.385g X 78=264g.

therefore,

78g of ethyne require 264g of carbon(iv) oxide.


Barisere Kpoobari provided a contribution 2 years ago

A 24V potential difference is applied across a parallel combination of four 6-oh… | Physics Past Questions

For parallel combination current flowing through all the resistors is the same
I=V/R
=24/6
=4A

Barisere Kpoobari provided a contribution 2 years ago

A mixture of blue and red pigment when illuminated by white light will appear | Physics Past Questions

The correct answer is D.Mixing blue and red pigments in equal amount gives magenta when illuminated by white light.