Answer:
5.50g (corrected to 3 significant figures)
Explanation:
mass = no. of moles x molar mass
molar mass of CO2 = (12.0107 + 15.999x2) =44.0087
Therefore, mass = 0.125 x 44.0087
= 5.50g (corrected to 3 significant figures)
Answer:
Pero el carbono también es importante. Todos los seres vivos sobre la Tierra están hechos de carbono. Si eliminas el agua de nuestro cuerpo, encontrarás que el carbono constituye la mayoría del peso o masa restante. Lo mismo es cierto para las plantas.
Explanation:
Answer:
Cs
Explanation:
This question is formatted oddly, but I understand the gist of it. Essentially, even if the periodic table is cut off by one row and missing the lanthanides and actinides, basic rules of the table still apply.
Remember the general trend of ionization energy: <u>the farther to the right and the farther up, the higher the ionization energy.</u>
As an example, fluorine is the "t-rex" of the elements because it's so electronegative that it hoards electrons, and that means it's hard to take its electrons away, which gives it a high ionization energy.
Out of the given choices, cesium Cs has the lowest ionization energy because it's so far to the left and so low. You can just nab an electron and it won't even mind too much.
<em>Why not the other answer choices? </em>Bromine is a halogen (so it's on the far right of the table) and it's fairly high up, so its ionization energy is much too high. Argon is a noble gas, so it's so stable that it hates it when someone tries to take an electron away; it has a very high ionization energy. Nickel, likewise, is a transition metal, so it's not the answer either.
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Disadvantages
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