Answer:
It won't work as well. You can try though, it won't hurt anything
Answer: Plate tectonics shift the continents, raise mountains and move the ocean floor while processes not fully understood alter the climate. Such constant change has characterized Earth since its beginning some 4.5 billion years ago. From the outset, heat and gravity shaped the evolution of the planet.
Explanation:
Answer:
1.1724 g.
Explanation:
- Firstly we need to calculate the percentage of pure MgSO₄ in (MgSO₄.7H₂O).
- If we have 1.0 mol of MgSO₄.7H₂O, then we will have the the mass of its molecular mass.
The molecular mass of 1.0 mol (MgSO₄.7H₂O) = 246.4 g/mol.
The molecular mass of pure MgSO₄ = 120.366 g/mol.
The molecular mass of 7(H₂O) = 7(18.0 g/mol) = 126.0 g/mol.
∴ The mass % of pure MgSO₄ = [(mass of pure MgSO₄)/(mass of MgSO₄.7H₂O)] x 100 = [(120.366 g/mol)/(246.4 g/mol)] x 100 = 48.85%.
∴ the quantity of pure MgSO₄ = (mass of MgSO₄.7H₂O)(% of MgSO₄/100) = (2.4 g)(48.85/100) = 1.1724 g.
*brings you good news*
The answer is D. 12
Hope i will help you angain sometime :)
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