0.25 g of a hydrocarbon CxHy on combustion forms 0.7860g of carbon(IV)oxide and 0.3210g of water. When the hydrocarbon is vapourised it occupies 80cm3 at s. t.p. Determine the formula of the hydrocarbon​

Which set of characteristics best describes igneous rock? a) largest type of rock, made of organic matter, hardest type of rock b) least abundant type of rock, made of other rocks, made mostly of minerals c) found on all continents, contains wavy bands of stripes, contains fossils d) most abundant type in earth's crust, made of magma/lava, contains no fossils

Particles vibrate in a rigid structure and do not move relative to their neighbors.

When a nucleus absorbs a neutron and then breaks apart, there are many products of the reaction. what is not a product of a nuclear fission reaction