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Chemistry, 11.01.2021 18:40 rennytheraccoon
93. A sample of iron has a volume of 15.0 ml. The density of iron is 7.87 g/ml. What is the mass of the
iron sample?
A 1.91g
B. 118 g
C. 0.5258
D. 100 g
94. What mass of oxygen is required to react with 25 grams of nitrogen in the equation below?
2N2 + 502 → 2N.05
A. 0.89 g
B. 32
C. 715
D. 545
95. Which direction will the equilibrium shift if more heat is added in the reaction below?
H + Cl → 2HCl + beat
A. the equilibrium will shift to the right
B. the equilibrium will shift to the left
C. there will be no shift
D. there is not enough information given to tell which way the equilibrium will shift
96. According to the kinetic-molecular theory of gases, molecules of an ideal gas.
A. travel in curved lines of motion
B. undergo elastic collisions
C. are separated by small distances
D. have strong forces between them
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93. A sample of iron has a volume of 15.0 ml. The density of iron is 7.87 g/ml. What is the mass of...
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