that means the it can not be undone because another substance was introduced
the variable..
freezing point
Simply a chemical bond
an amendment an amendment
It is the way air canges
CARS IN THE PAST-wheels were very thin, flimsy-cars were very ugly, not sleek-cars were made by handCARS IN THE PRESENT-cars are manufactured by machines-wheels are thick, sturdy-cars have totally different, new-age designs
Combinations between ANY chemical are called chemical bonds. This is not something specific to one single chemical.
jhelum
does she seat OR WHAT
It changes chemically.
Physically, a mixture. Chemically, a compound.
Polypeptides