Scientific tend to view sex and love as a mammalian instinct. Dr.Helen Fisher divides love experience into three partly-overlapping stage: lust, attraction, and attachment.
Lust is the initial passionate sexual desire that promotes mating. It stimulate the release of hormones such as testosterone and oestrogen. The effect is only last for weeks or months.
Attraction is romantic love stage. People at this stage will constantly release chemical, including dopamine, phenylethylamine (PEA), norepinephrine and serotonin. The effect of this chemicals flowing in bloodstream is similar to stress: increased heart reat, sweaty palms, heavy breathing and etc.
Unlike lust and attraction stage, attachment stagement stage is accounted for long term relationship. Evidence suggested that monogamy and trust are related with oxytocin and vasopressin. This is the stage where mature love is.
References:
Love. Life Chemistry. Retrieved June 29, 2008, from http://www.life-chemistry.blogspot.com/
The Three Stages of Love. BBC. Retrieved June 26, 2008, from http://www.bbc.co.uk/science/hottopics/love/
The Right Chemistry. TIME. Retrieved June 26, 2008, from http://www.time.com/time/magazine/article/0,9171,977754,00.html
A chemical reaction is represented by a chemical equation.
The antonym for "chemical equation" is "non-chemical equation" or simply "equation" if the context is clear that it is not related to chemistry.
A chemical equation is the graphic expression of a chemical reaction.
Steel hasn't a chemical equation.
It is a mixture and hasn't a chemical equation.
A chemical equation is a shorthand description of a chemical reaction.
A chemical reaction can be represented by a chemical equation.
A chemical reaction is represented by a chemical equation.
The antonym for "chemical equation" is "non-chemical equation" or simply "equation" if the context is clear that it is not related to chemistry.
The chemical equation for potassium is K.
Power hasn't a chemical equation.
A balanced chemical equation has correct placed coefficients and a representative chemical equation need these coefficients.
A chemical equation is the representation of a chemical reaction.
A chemical equation is the graphic expression of a chemical reaction.
if you mean symbol equation its C6H1206
Steel hasn't a chemical equation.
Reactants are to the left in a chemical equation.