Answer:
chemical weathering occurs on the surface of minerals, the water and acids that control chemical weathering require access to the surface. Physical weathering breaks the rock to provide that surface
Answer:
25.11 g.
Explanation:
- It is clear from the balanced equation:
<em>Ag₂O + 2HCl → 2AgCl + H₂O.</em>
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that 1.0 mole of Ag₂O reacts with 2.0 moles of HCl to produce 2.0 mole of AgCl and 1.0 moles of H₂O.
- 7.8 g of HCl reacts with excess Ag₂O. To calculate the no. of grams of Ag₂O that reacted, we should calculate the no. of moles of HCl:
<em>no. of moles of HCl = mass/atomic mass</em> = (7.9 g)/(36.46 g/mol) = <em>0.2167 mol.</em>
- From the balanced equation; every 1.0 mol of Ag₂O reacts with 2 moles of HCl.
∴ 0.2167 mol of HCl will react with (0.2617 mol / 2 = 0.1083 mol) of Ag₂O.
<em>∴ The mass of reacted Ag₂O = no. of moles x molar mas</em>s = (0.1083 mol)(231.735 g/mol) = <em>25.11 g.</em>
In the sequence of nitrogenous bases
Answer:
1-bromo-6-methylheptane : X
2-chloro-6-methylheptane: Y
Explanation:
A chiral compound is one which has a carbon with all four groups different.
Given:
Compound X is Achiral
Compound Y is chiral
Compound X gives single alkene on elimination : Z
Compound Y gives mixture of alkenes
Z on hydrogenation gives 2-methylheptane.
So the alkene must have carbon chain arrangement similar to 2-methylheptane and so the compound X and Y.
Based on the information the possible compounds are:
1-bromo-6-methylheptane : X
2-chloro-6-methylheptane: Y
The structures are shown in the figure.
