Answer:
53.2
Explanation:
The balanced reaction is:
2Fe(s) + 3O₂(g) → Fe₂O₃
It means that 3 moles of oxygen form 1 mol of iron(III) oxide. The molar masses are: Fe = 55.8 g/mol and O = 16 g/mol. So
O₂ = 2x 16 = 32 g/mol
Fe₂O₃ = 2x55.8 + 3x16 = 159.6 g/mol
So, 32 g of O₂ corresponds to 1 mol of O₂. The stoichiometry calculus must be (always in moles):
3 mol of O₂ ------------------------ 1 mol of Fe₂O₃
1 mol of O₂ ------------------------ x
By a direct simple three rule:
3x = 1
x = 1/3 mol of Fe₂O₃
The mass is the molar mass multiplied by the number of moles, so:
m = 159.6x (1/3)
m = 53.2 g iron (III) oxide.
I think the correct answer would be direct additives. Not proper handling of cleaning agents especially in areas where food are prepared or served would most likely add chemicals to the food which is harmful to the consumer. Hope this helps.
38K
-391°F
Explanation:
Given temperature:
Temperature of Triton = -235°C
Unknown:
Surface temperature of Triton in °F and Kelvin
Solution:
Temperature is the degree of hotness or coldness of a body.
It is usually measured using units of kelvin, degree Celsius and degree Fahrenheit.
tK = 273 + t°C from °C to K
t°F = 
t°C + 32
tk = temperature in kelvin
t°C = temperature in Celsius
t°F = temperature in Fahrenheit
tK = 273 + (-235) = 38K
t°F = x (-235) + 32 = -423 + 32 = -391°F
learn more:
Heat and temperature brainly.com/question/914750
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Answer:
An unsaturated solution contains less than the most solute that can be mixed with and became part of a liquid at that temperature. ... A supersaturated solution can be prepared by preparing a saturated solution at a higher than desired temperature then allowing it to cool, decreasing the ability to be dissolved in something of the solute
Explanation:
