Hey there,
Question : An element is a substance that?
Answer : An element is a substance that cannot be separated into simple substances.
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Answer:
d = 1.8 × 10⁻⁴ kg/L
Explanation:
Given data:
Moles of helium = 2 mol
Temperature and pressure = standard
Density = ?
Solution:
PV = nRT
V = nRT/ P
V = 2 mol × 0.0821 atm. L/ mol. K × 273 K / 1 atm
V = 44.8 L
Mass of helium:
Mass = number of moles × molar mass
Mass = 2 mol × 4 g/mol
Mass = 8 g
Mass = 0.008 kg
Density;
Density = mass/ volume
d = 0.008 kg/ 44.8 L
d = 1.8 × 10⁻⁴ kg/L
Individuals who are both born and raised in high altitudes will have their bodies re-establish equilibrium shift by producing more hemoglobin, which allows for more oxygen to be bound to the heme protein and thus cause an equilibrium shift to the right.
Hello!
Yes, it needs oxygen to metabolize sugars that, in the end, produce carbon dioxide (CO2).
For first answer A and second answer A and third answer isA
