The answer is <span>a total of eight valence electrons
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Answer: 2 mol
Explanation:
- According to the ideal gas law, One mole of an ideal gas at STP (standard temperature and normal pressure) occupies 22.4 liters.
- Using cross multiplication,
1 mol of (O2) → 22.4 L
? → 43.9 L
Therefore, the number of moles of oxygen in 43.9 L = (43.9 × 1)/ 22.4 = 1.96 mol≈ 2 mol..
A fish is swimming at a constant rate toward the ocean floor. The equation y = −7x − 3 can be used to represent this situation, where y is the depth of the fish in meters below sea level and x is the number of seconds the fish has been swimming. Which statement best describes the depth of the fish, given this equation?
From a starting position of 7 meters below sea level, the fish is descending 3 meters per second.
B From a starting position of 7 meters below sea level, the fish is ascending 3 meters per second.
C From a starting position of 3 meters below sea level, the fish is descending 7 meters per second