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2014-07-20 11:12:19
2014-07-20 11:12:19

Both have no lone pairs.They have even bonds

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The molar mass of SiH4 is approximately 32.117 grams per mole. So, 9.30 moles of SiH4 has a mass of 298.69 grams.


The molar mass of SiH4 is approximately 32.117 grams per mole. So, 9.30 moles of SiH4 has a mass of 298.69 grams.


It is either homologous structures or homozygous structures. Embryological structures are when different species of animals look similar in the earliest stage of development and Analogous structures are when animals look different but their function is basically the same. So just look up homologous structures and homozygous structures in your Bio book!!


because ch4 has an octett and bh3 not so it dimerises to b2h6


They are said to be homologous because they have similar structures.


SiH4 (Silane) existsso Answer is max Four


Different elements have different chemical properties because they have different atomic structures and characteristics. Different chemical elements have different atomic structures, and particularly different electron shell structures. Chemical bonding is generally based on electron structures of atoms, and as these structures vary (or are similar) so the chemical properties vary (or are similar).


Though they are similar, they are homologous structures. The forelimbs are anatomically similar . So they have a common ancestor but they have evolved with different uses.


First divide 4 by 16.So answer is 0.25


CH4 --> CO2 is a 1 to 1 reaction (C-balanced) when burning with oxygen. So 1 mole CH4 --> 1 mole CO2 So 1 Litere CH4 --> 1 Liter CO2 So 16 grams CH4 --> 44 grams CO2


CH4 + 2 O2 -> CO2 + 2 H2O So for every L of CH4 you need 2 L of O2 So for 50L of CH4 you need 100L O2


CH4 + 2O2 gives CO2 and 2H2O.So 16g of CH4 react with 64g of O2.So 24g react with 96g of O2


They are warmblooded animals. Both are vertebrates and so the bone structures are broadly similar. Birds are more closely related to Reptiles than to mammals.


Because their bodies are like humans. They have similar structures to us, so if they can survive, so can we.


Divide mass by molecular mass.640/16.So the answer is 40


They are similar because of their structures and how they are so close (each cell and each brick).


There are 4 Hydrogen atoms in 1 mol of CH4 so in 2 moles there will be 8.


methane i think so not exactly


Take the balanced equation. CH4+2O2---->CO2+2H2O.So 2.8mol of CH4 need 5.6mol of O2.So O2 is limitting factor


Simply multiply by molecular mass. 16*6.So the mass produced is 96g


One mole is equal to 6.022 x 1023 of anything. In this case, we are looking for molecules. So 1 mole=6.022 x 1023 molecules. We have 2.3 moles, so we want to know how many molecules are there. 2.3 mol CH4 x 6.022x1023 molecules CH4 / mol CH4 = 1.38x1024 molecules of CH4


16g of CH4 need 32g of O2.So 85g need 170g.O2 is limitins factor


The reason why NH3 and H20 can form a coordinate covalent bond with H but CH4 cannot do so is because methane (CH4) only forms single bonds. Hydrogen (H) can form more than one bond.


No, it is covalently bonded and so, will not readily ionize in solution.


Methane is CH4, so there are four.



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