Answer:
The moon is 384472.282 Km from earth
Explanation:
Answer:
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The statement that is NOT true of fission is B. slow neutrons are fired at a large nucleus.
<h3>
What is Nuclear fission</h3>
This is the splitting of large nuclei to smaller ones. It could be a natural or spontaneous dissociation by radioactive decay, or can be initiated in in a laboratory under required conditions. It involves;
- Splitting of large nuclei to two smaller ones
- Release of large amount of energy
- Neutrons released can be used to initiate chain reactions
Hence, the statement that is not true about fission is that slow neutrons are fired at a large nucleus.
Learn more about nuclear fission here:
brainly.com/question/3992688
Answer:
The molar mass for the solute is 180.8 g/mol
Explanation:
We apply the colligative property of freezing point depression.
The formula is T° freezing pure solvent - T° freezing solution = Kf . m
T° freezing pure solvent - T° freezing solution → ΔT
Kf = 1.86 °C/m
m is molality. We must determine with data given.
Molality are the moles of solute contained in 1 kg of solvent
0° - (-1.8°C) = 1.86 °C/m . m
1.8°C / 1.86 m/°C = m → 0.968 mol/kg
We multiply the molality by kg of solute, to determine the moles
100 g . 1kg/1000 g = 0.1kg → 0.968 mol/kg . 0.1 kg = 0.0968 moles
To find the molar mass we make g/ mol → 17.5 g / 0.0968 mol =
180.8 g/mol