1) The first reactant is incomplete.
2) The reaction is a combustion reaction and it is easy to infere that it is the combustion of the alkane with 3 carbons.
3) The general chemical formula of the alkanes is
4) Hence the equation is:
5) The name of the alkane is propane, so the word equation is:
propane + oxygen → carbon dioxide + water
6) The equation is unbalanced. This is the balanced equation:
7) It is, as the combustion of any hydrocarbon, a redox (reduction-oxidation) reaction, where the carbon is oxidized and the oxygen is reduced.
8) This kind of reactions release a lot of energy.
Answer:
The correct answer will be option-Mullis was able to imagine the outcome of carrying out a different process.
Explanation:
The technique of replicating the DNA artificially or in-vitro is known as the polymerase chain reaction or PCR was discovered by the Kary Mullis.
He was working in a Cetus company on synthesizing oligonucleotides and the detection of point mutation. One day while driving with his partner he went into an intellectual leap and thought about the concept which led to the development of the polymerase chain reaction techniques.
This is an example of creativity in a sense that he was able to think the result of a technique to synthesize new DNA by using opposed primers and repetition of denaturation, annealing and polymerization process will help amplify the DNA.
Thus, the selected option is the correct answer.
Answer:
A
Explanation:
The correct option is (a). Chromosomes are long thread-like structures present in the nucleus of a cell which contains hereditary information of the cell (genes). Genes are the part of a chromosome and made up of DNA.
Plants obtain the gases they need through their leaves. They require oxygen for respiration and carbon dioxide for photosynthesis.
Explanation:
The gases diffuse between the cells spaces of the leaf through pores, which are normally on the underside of the leaf - stomata. From these spaces they will diffuse into the cells that require them.
Your text must speak about the carbon cycle, ie all the forms that carbon can have (CO2, living organisms, fossils ...)
Terrestrial plants store atmospheric carbon through the primary production process and will only return a portion of it. The vegetation will then send this carbon to the soil in the form of dead organic matter. Most of this carbon is then returned to the atmosphere by the processes of respiration and decomposition in soils.
Exchange between living beings and the atmosphere is estimated at 60 gigatonnes per year. This exchange is a two-way process: while fermentation, respiration of bacteria, animals and plants release CO2, photosynthesis of chlorophyll plants fixes carbon in organic matter or biomass.
The oceans take more carbon from the atmosphere than they give back to it, so they are considered carbon sinks. A transfer of carbon is made between the different compartments by the rivers and rivers.
Climatic phenomena and erosion perpetuate the carbon exchange between rocks on the surface of the earth and in the oceans. Carbon dives under the mantle of the earth during a so-called subduction process - while volcanoes, baths and geysers release carbon dioxide and methane back into the atmosphere.
The geological phases of the carbon cycle - climate phenomena, erosion, subduction and fossil fuel formation - occur over a period of millions of years. The biological phases of the carbon cycle - photosynthesis, respiration, decomposition by microbes - can occur over a period of days to thousands of years.
