In a chemical reaction occurring in an open beaker, the reactants have a mass of 10.0 g and contain 1000 j of energy. the products in the beaker contain a mass of 5.0 g and 500 j of energy. which best explains the difference in energy and mass as reactants are converted to products? kinetic energy closed systems law of conservation electromagnetic energy

Answer : The correct option is, Kinetic energy.

Explanation :

According to the kinetic energy, the kinetic energy is directly proportional to the mass of an object and the square of the velocity of an object.

The formula of kinetic energy is,

where,

K.E = kinetic energy

m = mass of an object

v = velocity of an object

From this we conclude that there is a direct relationship between the kinetic energy and the mass of an object.

As per question, the reactant have a mass of 10 grams and contains energy 1000 J and the product have a mass of 5 grams and contains energy 500 J that means as the mass of an object decreases, the kinetic energy is also decreases.

Hence, the correct option is, Kinetic energy.

c is having 4 valence electrons and is bonded to three hydrogens and one sulphur atom, therefore, the number of bond pair is equal to four. as all the valence electrons are used in forming the bonds so, there is no lone pair left on carbon.

s is having 6 valence electrons and is bonded to one other sulfur atom and one carbon atom, therefore, the number of bond pair is equal to 2. as only two valence electrons are used in forming the bonds so, four electrons are left. therefore, two lone pairs are present on s.

the answer is 0.42 is that is an option. this question provides no info