Quando o gelo derrete; o ferro enferruja; quando o açúcar vira caramelo ocorre respectivamente:
a) uma transformação química; uma transformação física; uma transformação química
b) uma transformação física; uma transformação física; uma transformação química
c) uma transformação física; uma transformação química; uma transformação química.
Answers: 3
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What is the empirical formula of vanadium 1 oxide given that 20.38 grams of vandium combines with oxygen to form 23.58 grams of the oxide
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(apex) when a cup of water is dropped, as the cup falls, the water in the cup falls out true or false?
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Ants live on acacia trees in south america. the ants feed on sugars secreted by the trees. the trees provide room for the ants to live. the ants sting any other insect or animal that comes to eat the trees. what type of relationship is this?
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In vapor-liquid equilibrium in a binary mixture, both components are generally present in both phases. how many degrees of freedom are there for such a system? the reaction between nitrogen and hydrogen to form ammonia occurs in the gas phase. how many degrees of freedom are there for this system? steam and coal react at high temperatures to form hydrogen, carbon monoxide, carbon dioxide, and methane. the following reactions have been suggested as being involved in the chemical transformation:
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Quando o gelo derrete; o ferro enferruja; quando o açúcar vira caramelo ocorre respectivamente:
a)...
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