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katrin [286]
3 years ago
12

Why is it not possible to extract aluminium by heating its ore with carbon?

Chemistry
1 answer:
MAVERICK [17]3 years ago
7 0
Aluminium is higher than carbon in the reactivity series, so aluminium can only be extracted using electrolysis
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How does an increase in temperature affect the equilibrium concentration of the underlined substance and K for each of the follo
Darya [45]

Explanation:

Due to the positive value of the change in temperature, this is an endothermic reaction.

Since the forward reaction is endothermic, increasing the temperature increases the equilibrium constant (k).

In an equilibrium system, the position of the equilibrium will move in a way to annul the change made to the system. An increase in temperature for an endothermic reaction would favour the reaction, leading to increase in amount of products and decrease in amount of reactants.

3 0
3 years ago
Is there more or less air near sea level
vampirchik [111]

there is more air near sea level

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3 years ago
Two electrons are found in the same atom. One electron has the quantum number set (4, 1, 0, +½), and the other electron has the
Kruka [31]
Quantum states of electrons are usually written in terms of four numbers: the principle quantum number (n), the angular momentum azimuthal number (L), the magnetic quantum number (ml), and the spin projection number (ms). The quantum number set (4,1,0,+1/2) and (4,1,1,+1/2) share the same principle quantum numbers and therefore both sit in the n=4 electron shell. 
5 0
3 years ago
what is the molar mass of nicotine (C10H14N2)? Question 6 options: 14.11 g/mol 28.02 g/mol C 120.1 g/mol 162.2 g/mol C
viva [34]

Answer:

162.2 g/mol

Explanation:

Molar mass is defined as the mass in 1 mole of the substance. It is calculated by adding the molar mass of the substituents each multiplied by the subscript they have in the formula.

Thus, To calculate molar mass of nicotine having formula, C_{10}H_{14}N_2

Molar mass of C = 12.0107 g/mol

Molar mass of H = 1.00784 g/mol

Molar mass of N = 14.0067 g/mol

Thus, molar mass of nicotine = 12.0107\times 10+1.00784\times 14+14.0067\times 2 = 162.2 g/mol

6 0
4 years ago
Express250,000ml in liters
frutty [35]

Answer:

250,000 ML is equal to 250 Liters.

Explanation:

The term 'Mili' multiplies the term 'Liter' by 1,000. Per every liter is 1000 milliliters.

7 0
3 years ago
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