What is true about the spontaneity of a reaction? When the products have less enthalpy than the reactants, the reaction is always spontaneous.
When the products have more enthalpy than the reactants, the reaction is always spontaneous.
When the products have less enthalpy than the reactants, the reaction tends to be spontaneous.
When the products have more enthalpy than the reactants, the reaction tends to be spontaneous.

people flirt to show their affection towards someone in a less forward way then telling. they want the other person to guess what they’re feeling to have the other person also start to like them

answer; i believe the correct answer is (solid gold);

answer is: nuclear fusion produces elements that are heavier than helium.

nuclei combine to form a heavier nucleus, releasing energy.  

for example, fusion of hydrogen atoms at the sun.  

this fusion nuclear reaction is in the inner core of the sun and hydrogen (atomic number 1) is conveted into helium (atomic number 2).  

the inner core is the central region of the sun and all solar energy is produced in the core by nuclear fusion.