Classify the chemical equations as being balanced or not balanced.

CaO + 3C → CaC2 + CO

Na + H2O → 2NaOH + H2

4Fe + O2 → 2Fe2O3

2Mg + O2 → 2MgO

Fusion and fission are both processes that involve which fundamental force? to ask? A. gravitational B. weak nuclear C. electromagnetic D. strong nuclear

What percentage of a person's body weight is water?

Why are dispersion forces weaker than dipole

When hoisting a personnel platform which of the following need not be engaged when they occupied platform is in a stationary position?

A uniform rod rotates in a horizontal plane about a vertical axis through one end. The rod is 3.46 m long, weighs 12.8 N, and rotates at 226 rev/min.

Explain constellations and galaxies in detail.

A vw bug is driving north on a striaght two lane road at a constant 38mph and a chevy impala is driving south at 29mph on the same road heading toward the vw bug (but in a different lane).

Ptolemy and Copernicus were astronomers who had proposed theories about the solar system. Ptolemy believed that the planets and the sun orbited Earth. Copernicus believed that Earth and other planets circled a stationary sun.

A TV draws 0.867 A of current when connected to a 122 V outlet. It's resistance is 140.71. A.) How many electrons pass through the TV per minute? B.) How much electrical energy does the TV convert to other forms of energy per minute?

If the pig can move the car 30 meters in 10 seconds then what is the speed for the car