Which term refers to the speed at which reactants are converted into products?
a) reaction rate
b) activation energy
c) meta stable state
d) spontaneous reaction

The correct answer is option A.

Explanation:

Reaction rate: It is defined as speed at which the reaction takes place or speed at which reactants are getting converted into products.It is the change in  the concentration of any of the reactants or products per unit time.

Activation energy is defined as the minimum amount of energy required by the reactants to undergo specified reaction.

Meta stable state is defined as state of an atom or nucleus with the longer life time in other excited states.

Spontaneous reaction are defined as those reaction which do not require any external force or effort to occur.

From all the definition stated above the , the correct answer of the asked question is option A.

8

explanation:

each principal energy level above the first contains one s orbital and three p orbitals. a set of three p orbitals, called the p sublevel, can hold a maximum of six electrons. therefore, the second level can contain a maximum of eight electrons - that is, two in the s orbital and 6 in the three p orbitals.

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conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.