Balancing chemical equations is a crucial skill in chemistry to have an accurate understanding of the conservation of mass and chemical reactions. A balanced chemical equation shows that the total ...

When using chemical formula it is possible to calculate the percentage composition of the chemical. This can be useful when extracting metals from ores or when making fertilisers for specific plants.

Step one – Work out the M r of the compound. M r of calcium carbonate, CaCO 3 = 40 + 12 + (3 × 16) = 100 Step two – Work out the total A r of all of the atoms of the element you are interested in.

Isotopes are atoms of the same element that have different numbers of neutrons in their nuclei, which give them different atomic masses. Percent abundance is the percentage of an isotope’s occurrence ...

Creative Commons (CC): This is a Creative Commons license. Attribution (BY): Credit must be given to the creator. Non-Commercial (NC): Only non-commercial uses of the work are permitted. Balancing ...

A novel method, based on differential calculus, was used to calculate the maximum potential error associated with the drug concentration in pharmaceutical mixtures ...