zahir725 zahir725

29-01-2017
Chemistry

contestada

descibe enthalpy change in term of exothermic and endothermic

Respuesta :

RoseWhite RoseWhite

29-01-2017

Negative enthalpy change means a reaction is exothermic because they give out heat, therefore losing energy.

Endothermic reactions have a positive enthalpy change because they absorb heat, therefore gaining energy.

Answer Link

Otras preguntas

Choose the situation in which the use of approximate numbers is most appropriate. A) planting trees in your yard B) ordering chairs for a kitchen table purchasi

complete the table of values for y=2-x x= -1, 0, 1, 2, 3, 4, y= , , , , -1, ,

I will mark brilliantestExplain the following phrases in your own words with reference to the poem "where the mind is without fear"in one-two lines:-(i)head is

"capital" investment is the major basic component of a business operation. "justify"this statement with examples

Would it be possible or desirable to create an entirely classless society in the United States? Explain your response.

can anyone help me with this math question

water is not used as thermometric liquid.why?

UUUUUUUUUUUUUUUUUUUUUU

Tell whether the lines through the given points are parallel, perpendicular, or neither. Line 1: A(3,6) B(11,10) Line 2: C(-4, 2) D(6, 16) Parallel, Perpendicul

Which of the following adaptations helps alpine animals deal with the high elevation? A) migration B) large stomachs C) hibernation D) insulating feathers E) hi