Which of the following apply to unsaturated hydrocarbons? select all that apply. a) they do not have isomers. b) they are more stable than saturated hydrocarbons. c) they will react readily with other elements and compounds. d) they have double and triple bonds. e) they include the alkyne and the alkene series.

I understand that we are able to pick "select that would apply", but based on my information, I believe that the correct answer would actually be (option c) mainly because this would relate to the definition of the word "hydrocarbons".

Its strengthits conductivity of heat and electricity its shiny colourmalleable and ductility

Mass is the amount of matter in an object.  weight is the measurement of the pull of gravity on an object.  say for example, you travel to the moon which has a different gravitational field compared to the gravitational field of earth. (gravitational fields: earth = 1, moon = 0.165)  now when you are on the moon, the pull of gravity on you is different than on the earth. and as weight is the measurement of the pull of gravity on an object, that means yes, your weight can and will change on the moon.  however, on the moon, on earth or even on jupiter, the amount of mass inside of you remains the same. meaning your physical mass remains constant.  in conclusion it is possible for your weight to change as your mass remains constant.