The reactant side of the given chemical equation C2H5OH + 3O2 → 2CO2 + 3H2O contains six hydrogen atoms.
The chemical equation in question is C2H5OH + 3O2 → 2CO2 + 3H2O. This refers to the reaction of ethanol (C2H5OH) with oxygen (O2), producing carbon dioxide (CO2) and water (H2O). From the chemical equation, the reactants side contains one ethanol molecule containing six hydrogen atoms. Hence, in terms of reactants, the number of hydrogen atoms involved in the equation is 6.
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Answer: Option (C) is the correct answer.
Explanation:
Once the cats escaped from the puzzle box, then in their conscious mind they tend to develop the image of path through which they had escaped.
So, form next time onward they tend to move more quickly because they already know the path through which they had to escape.
Hence, we can conclude that after receiving a reward for escaping the puzzle box, the cats gradually learned to escape more quickly.
The pesticide is sprayed, and only those that can withstand it survive while the others perish. Those who can withstand it generate offspring who can withstand it.
Pesticides have the potential to pollute lawn, water, as well as other vegetation. Herbicides can be poisonous to a variety of different organisms in contrast to insects and plants, such as birds, fish, helpful invertebrates, and quasi plants. staying inside the rooms where bug sprays are being used or bringing inside household items designed for the outdoors.
Pesticides have the potential to pollute turf, water, soil, and other plant life. In addition to destroying weeds or insects, pesticides can be poisonous to a variety of other animals and plants, including fish, birds, beneficial insects, and non-target plants. residing in the areas where foggers are utilized or bringing indoor-use items inside your home. Any substance "designed for avoiding, eliminating, repelling, or reducing any pest" is referred to as a pesticide.
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Answer:
The right cerebral hemisphere controls movements on the left side of the body.
Knowing the age of the fossils is the most important factor for the scientists that study evolution.
The age of the fossils is found out with the help of objective and radioactive dating. The fossils themselves generally cannot be dated directly, as the majority of them have no or less of the organic substance left in it, and dating with carbon 14 is only beneficial up to the age of 35000 to 50000 years.
However, with the application of radiometric dating, the scientists are able to put an objective date. By determining the concentration of radioactive decay in specific elements since the solidification of the igneous rocks, one can find out the exact date of the fossil.
The most generally used elements for radiometric dating of rocks are uranium, argon., potassium, and rubidium as they exhibit fairly long half lifes.