4 Fe + 3 02 2 Fe2 O3

In this chemical equation, why is the number of atoms the same on each side of the arrow?

Chemical reactions reduce matter but create energy.
Chemical reactions produce new matter.
Matter cannot be created or destroyed.

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

How does the presence of oxygen affect the chemical pathways used to extract energy from glucose?

Which tool is least in predicting weather