Which element (s) are not balanced in this equation? Fe2O3+3 CO → Fe+3 CO2

A.

Only the Fe is unbalanced.

B.

Only the O is unbalanced

C.

Fe and O are both unbalanced.

D.

C and O are both unbalanced

What are the mole fraction and the mass percent of a solution made by dissolving 0.21 g KBr in 0.355 L water? (d = 1.00 g/mL.) mole fraction

Lithium has an atomic mass of 7 and an atomic number of 3 so the number of neutrons must be

Find the new concentration of a solution if 25.0 mL of water is added to 125.0 mL of 0.150 M NaCl solution.

What is precipitation? (chem)

What is the density of an object with the density of 3 when cut in half?

Describe the three base materials in soil in terms of porosity and permeability.

What is Characteristic of a mineral A. It must be Amorphous and have a definite chemical composition B. It must be Amorphous and have a indefinite chemical composition C. It must be crystalline have a indefinite chemical composition D.

Which statement is true for light passing into a medium that is more optically dense than the first medium through which it passed?

A "shielding gas" mixture of argon and carbon dioxide is sometimes used in welding to improve the strength of the weld. if a gas cylinder of this two-part mixture was at 4.0 atm pressure and this mixture was 90.

Identify the Sl units of measurement for length (distance) and mass