Answer:
the fossils on some of the continents were in the same spots as fossils on other continents
Explanation:
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Since the half life of the radioactive isotope is 4,000 years, after 4,000 years the amount of the isotope would decrease by half. (Hence the name, half life.) So, after 4,000 years, there would be half of the isotope left in the fossil.
Answer:
4204 K
Explanation:
Step 1: Data
<em>Given data</em>
- Density of uranium hexafluoride (ρ): 0.5820 g/L
- Pressure of uranium hexafluoride (P): 0.5073 atm
<em>Required data</em>
- Universal gas constant (R): 0.08206 atm.L/mol.K
- Molar mass of uranium hexafluoride (M): 352.02 g/mol
Step 2: Calculate the temperature of the gas
We will use the following expression derived from the ideal gas equation.
P × M = ρ × R × T
T = P × M/ρ × R
T = 0.5073 atm × (352.02 g/mol)/(0.5820 g/L) × (0.08206 atm.L/mol.K)
T = 4204 K
Answer:
The white stuff we know as sugar is sucrose, a molecule composed of 12 atoms of carbon, 22 atoms of hydrogen, and 11 atoms of oxygen (C12H22O11). Like all compounds made from these three elements, sugar is a carbohydrate.
Explanation:
