All of the following are true of carbon except which of the following?a. Carbon is the major component of inorganic molecules.
b. Carbon is ranked seventeenth in abundance in Earth's crust.
c. Carbon is readily found combined and uncombined in nature.
d. Carbon is found in all living matter and in common fuels including coal.
Answers
All the statements are true about carbon except option a. Carbon is not a major component of inorganic molecules.
What is carbon?
Carbon is 6th element in periodic table. It is in 14th group and is a non-metal or gas. Carbon is present in all living matter and in common fuels including coal.
Carbon can be readily found in combined or non-combined state. Carbon is the major component of organic molecules and not that of inorganic molecules.
Organic molecules are hydrocarbons or their derivatives whose backbone is carbon chain. Therefore, option a is not true about carbon.
To learn more about carbon, refer the link below:
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For the slow receptors, the likelihood of summation is ________ by the ________ of time required for those responses to decay.A) decreased : short period B) increased : short period C) decreased : long period D) increased : long period E) unaffected : long period
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Answer : The molar volume of the gas will be, 44.82 L
Solution :
Using ideal gas equation,
where,
n = number of moles of gas = 1 mole
P = pressure of the gas = 0.5 atm
T = temperature of the gas = 273 K
R = gas constant = 0.0821 Latm/moleK
V = volume of the gas.
Now put all the given values in the above equation, we get the molar volume of the gas.
Therefore, the molar volume of the gas will be, 44.82 L
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The statements that are correct are ‘A large Keq value indicates that products are favored.’ And ‘A small Keq value indicates that the reverse reaction will occur very quickly.’ Having large Keq means that the concentration of the product is greater than the reactants and so products are favored. Having small Keq means that the concentration of the reactants is greater than the product.
b. molality
c. parts per million
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B) Molality is the correct answer.
I know because I took the quiz in Time4Learning.
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This is because aluminium has a 3+ charge and nitrate has a 1- charge, so you need 3 of them to balance out aluminium.
Therefore, you have one ion of aluminium.