I belive the answer to your question would be 0
Answer:
Zinc mercury transition metal
Silicon boron metalloid
Oxygen nitrogen non metal
Sodium alkali metal
Explanation:
Cytosine (C) and Guanine (G) are more steady under expanding heat since C and G have three hydrogen bonds while Adenine (An) and Thymine (T) have just two. The more hydrogen bonds there are, the more steady the nucleotides are. More bond dependability requires more warmth vitality to separate the securities, and since G≡C have more hydrogen securities than A=T, they are thusly more steady under expanding heat.
Answer:
Explanation:
AgNO3 + NaCl --> AgCl + NaNO3
Number of moles
AgNO3
= molar concentration * volume
= 1 * 0.01
= 0.01 mol
NaCl
= 0.01 * 1
= 0.01 mol.
By stoichiometry, 1 mole of silver nitrate reacted with 1 mole of NaCl. Therefore,
Number of moles of AgCl formed = 0.01 × 1
= 0.01 mol AgCl formed.
Heat absorbed by solution during precipitation:
Mass of solution = density × total volume
= 1 × 20
= 20 g.
q = m * Cp * (T2 - T1)
= 20 * 4.18 * (32.6 - 25.0)
= 635 J
Since 635 J was absorbed by the solution, the reaction released -635 J
So, Delta H = -635 J/0.01 mol
= -63500 J/mol
= -63.5 kJ/mol.
