Answer:
Carbon cycle is also important for the survival of life on earth.
Explanation:
In carbon cycle, carbondioxide gas is present in the atmosphere. This carbondioxide gas is taken inside by the plant body through stomata and made food from it. When this food is eaten by animals, this carbon is transferred to their bodies. During breathing, carbondioxide gas is removed from animal body and the carbondioxide gas again goes to the atmosphere.
Answer:El planteamiento de Anaxímenes no se posa sobre una innovadora teoría científica, pues su pretensión consiste en pre- sentar las bases filosóficas de una.
Explanation:
Answer:
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- <u>There are 0.041 g of NH₃ in the same number of molecules as in 0.35 g of SF₆.</u>
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Explanation:
Using the molar mass of the chemical formula SF₆ you can find the number of moles of molecules in 0.35 g of such substance. Then, using the molar mass of NH₃, you can find mass in grams corresponding to the same number of molecules.
<u>1. Find the molar mass of SF₆:</u>
Atom atomic mass number of atoms total mass in 1 mole
S 32.065 g/mol 1 32.065 g
F 18.998 g/mol 6 6 × 18.998 = 113.988 g
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molar mass of SF₆ = 146.053 g/mol
<u>2. Find the number of moles in 0.35 g of SF₆:</u>
- number of moles = mass in grams / molar mass
- number of moles = 0.35 g / 146.053 g / mol = 0.0024 mol
<u>3. Find the molar mass of NH₃:</u>
Atom atomic mass number of atoms total mass 1 mole
N 14.007 g/mol 1 14.007 g
H 1.008 g/mol 3 3 × 1.008 g = 113.988 g
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molar mass of NH₃ = 17.031 g/mol
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<u>4. Find the mass in 0.0024 mol of NH₃:</u>
- mass in grams = number of moles × molar mass
- mass = 0.0024 mol × 17.031 g/mol ≈ 0.041 grams
<u>5. Conclusion: </u>
There are 0.041 g of NH₃ in the same number of molecules as in 0.35 g of SF₆.
Answer: 0.0043mole
Explanation:Please see attachment for explanation
Answer:
Doping with galium or indium will yield a p-type semiconductor while doping with arsenic, antimony or phosphorus will yield an n-type semiconductor.
Explanation:
Doping refers to improving the conductivity of a semiconductor by addition of impurities. A trivalent impurity leads to p-type semiconductor while a pentavalent impurity leads to an n-type semiconductor.
