1} Trace fossils
2} Invasive
3} The age of depths
4} Any kind of weathering or rocks
5}Weathering, deposition, erosion
Answer:
ClO₄⁻
Explanation:
When an ion is hydrated it is surrounded by water molecules, thus, as small is the ion, more molecules may surround it, and it will be more strongly hydrated. In this case, the Cl is small than the S atom, because Cl is from group 17, and S from group 16, and Cl has more valence electrons, which will be more attracted to the nuclei.
So, ClO₄⁻ will be more strongly hydrated.
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Answer:
n = 0.005 mol
Explanation:
Given data:
Volume = 115 mL
Temperature = 21°C
Pressure = 746 mmHg
Number of moles = ?
Solution:
746 mmHg = 746 /760 = 0.98 atm
21°C = 21+273 = 294 K
115 mL /1000 = 0.115 L
PV = nRT
n = PV/RT
n = 0.98 atm × 0.115 L / 0.0821 atm. L. mol⁻¹. K⁻¹ ×294 K
n = 0.1127 atm. L /24.14 atm. L. mol⁻¹
n = 0.005 mol
