Which type of reaction is 2Fe2O3+ 3C? 4Fe+ 3CO2?
a. Decomposition
b. Combination
c. Double-replacement
d. Single-replacement
d
You might also like to view...
Charges of 4.0 µC and -6.0 µC are placed at two corners of an equilateral triangle with sides of 0.20 m. At the third corner, what is the electric field magnitude created by these two charges? (ke = 8.99 × 10^9 N•m2/C2)
a. 3.1 × 10^6 N/C c. 4.8 × 10^6 N/C b. 1.2 × 10^6 N/C d. 4.5 × 10^6 N/C
Suppose you want to set up a simple pendulum with a period of 2.50 s. How long should it be
(a) on Earth, at a location where g = 9.80 m/s2? (b) on a planet where g is 5.00 times what it is on Earth? What will be an ideal response?
A 3.0-kg object and a 5.0-kg object hang vertically at the opposite ends of a rope that goes over an ideal pulley. If the objects are gently released from rest, how long does it take for the 3.0-kg objects to rise by 1.0 m?
A) 0.41 s B) 0.74 s C) 0.82 s D) 1.8 s E) 0.90 s
The gauge pressure of the water in a swimming pool at 10 ft is ____________ the gauge pressure of the water at 5 ft
a. 1/4 b. 1/2 c. equal to d. 2 times e. 4 times