Answer: 
Explanation:
Single replacement reaction is a chemical reaction in which more reactive element displaces the less reactive element from its salt solution.
A more reactive element is one which can easily lose or gain electrons as compared to the other element.
As Magnesium is more reactive than tin, it can easily displace tin from its salt solution 
and form magnesium chloride and tin in elemental form.
The balanced chemical equation is:
Explanation:
i dont understand dont you already have the equation?
Answer:
Because the rock underwent lava and heat/pressure transformation. They are cooled and heated by magma, and then under go pressure. No fossils would be found in those.
Explanation:
Hope this helps! :)
Answer:
<em>C. The electron-withdrawing fluorine atoms pull electron density from the oxygen in trifluoroacetate. The negative charge is more stabilized in trifluoroacetate by this effect.</em>
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Explanation:
<em>The structures of trifluoroacetate and acetic acid are both shown in the image attached.</em>
<em>The trifluoroacetate anion (CF3CO2-), just like the acetate anion has in the middle, two oxygen atoms.</em>
<em>However, in the trifluoroacetate anion, there are also three electronegative fluorine atoms attached to the nearby carbon atom attached to the carbonyl, and these pull some electron density through the sigma bonding network away from the oxygen atoms, thereby spreading out the negative charge further. This effect, called the "inductive effect" stabilizes the anion formed,the trifouoroacetate anion is thus more stabilized than the acetate anion.</em>
<em>Hence, trifluoroacetic acid is a stronger acid than acetic acid, having a pKa of -0.18.</em>
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<u><em>Hope this helps!</em></u>
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Answer:
4g of NH₃
Explanation:
Hello,
To solve this question, we'll require the equation of reaction.
Equation of reaction
N₂ + 3H₂ → 2NH₃
From the equation of reaction, 1 mole of N₂ reacts with 3 moles of H₂ to produce 2 moles of NH₃.
Number moles = mass / molar mass
Molar mass of H = 1.0g/mol
Mass of H₂ = 2 ×1 = 2g
Molar mass of N₂ = 14.0g/mol
Mass = 2 × 14 = 28g
Molar mass of NH₃ = 17g/mol
Mass = 17g
Therefore, 28g of N₂ reacts with 6g of H₂ to produce 34g of NH₃
I.e 28g + 6g(N₂ + H₂) = 34g of NH₃
34g of (N2 + H2) = 34g of NH₃
4g of (N2 + H2) = x g of NH₃
x = (4 × 34) / 34
x = 4g of NH₃
4g of NH₃ will be produced from 1g of N2 and 3g of H2
