Which reaction is endothermic? HCl + NaOH Right arrow. NaCl + H2O + 58 kJ 6CO2 + 12H2O + energy Right arrow. C6H12O6 + 6O2 + 6H2O 2Na + Cl2 Right arrow. 2NaCl + energy 2C2H6 + 7O2 Right arrow. 4CO2 + 6H2O + 2,502 kJ

An endothermic reaction is a reaction in which energy is absorbed such as;  6CO2 + 12H2O + energy > C6H12O6

An endothermic reaction is a reaction in which energy is absorbed. The enthalpy change for an endothermic reaction is positive. The energy of the products is greater than the energy of the reactants.

The reaction that is endothermic in the list is the reaction;   6CO2 + 12H2O + energy > C6H12O6 . Energy is a product in the reaction. This means that energy is absorbed in the process.

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Explanation:

-An endothermic reaction is a chemical reaction that gains or absorbs heat from its surrounding in the form of heat.

-During the reaction, the temperature of the surrounding reduces.

-From the reactions given:

is the only endothermic reaction.

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.

question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

question answered by

(jacemorris04)