Which of these chemical equations is correctly balanced?

A. MnO4 + 2 C2H2O4 Mn + 2 CO2 + 4 H2O

B. MnO4 + 3 C2H2O4 Mn + 6 CO2 + 4 H2O

C. MnO4 + 4 C2H2O4 Mn + 8 CO2 + 4 H2O

D. MnO4 + 6 C2H2O4 Mn + 12 CO2 + 12 H2O

Calculate the molality of a solution formed by adding 26.0 g NaCl to 74.0 g of water at 10.0 °C. The density of this solution is 1.203 g/mL at 10.0 °C. The molar mass of NaCl = 58.44 g/mol and the molar mass of H2O = 18.02 g/mol.

Which type of bond is most likely to occur in the compound mgcl2?

30. A. An organic compound - A (C4H80) forms phenyl hydrazone with phenyl hydrazine and reduces Fehling's mpt any two questions: solution. It has negative iodoform test. Identify the organic compound A.

How to predict which elements are reactive under normal conditions?

What happens to particles in diffusion?

Common properties of sodium, calcium, iron, and gold

The closeness of a measurement to its actual value is a measure of its A. usefulness. B. reproducibility. C. precision. D. accuracy.

At 300 k the pressure inside a gas filled container is 500 kPa if the pressure inside decreses to 100kpa but the volume remains the same what is the final temperature of the gas

The SI unit for current is: joules volts ohms amps

In chemical reactions, there is a conservation of what?