According to the Law of Conservation of Mass, the number of iron atoms needed to complete the following reaction is ___ Fe + 3O2 → 2Fe2O3

Perform the following mathematical operation, and report the answer to the appropriate number of significant figures. 0.00325136 - 1.76527 =

Electrical potential is the amount of energy that is available to do what? A.) attract atoms to each other B.) move atoms from one half-cell to another half-cell C.) move electrons from anode to cathode D.) move electrons from cathode to anode

Consider the reaction ch3oh (l) →ch4 (g) + 1/2o2 (g). part a calculate δrh∘298.

Beryllium chlorite is formed when a beryllium cation with charge 2 + combines with a chlorite ion with charge 1-. How will you derive the formula for beryllium chlorite?

Water has many exceptional and useful properties. Which is the rarest property among compounds? Water has many exceptional and useful properties. Which is the rarest property among compounds? Solid water is less dense than liquid water.

A noble gas consists of three isotopes of masses of 19.99 amu, 20.99 amu, and 21.99 amu. the relative abundances of these isotopes are 90.92%, 0.257%, and 8.82% respectively. what is the average atomic mass of this noble gas? what noble gas is this?

Adding iron filings to sand

Which of the following sets of empirícal formula, molar mass, and molecular formula is correct?

Hexane and hexene are hydrocarbon compounds from different homologous series. the combustion of these two compounds produce different amount of soot. explain the difference based on the percentage of carbon by mass.

Reactants → products Based on the Law of Conservation of Matter, describe the relationship between the mass of the reactants and the mass of the products.