TyronStiefel TyronStiefel

14-05-2015
Biology

contestada

Why do all chemical reactions require activation energy?

Respuesta :

14-05-2015

because chemical reactions cannot react spontaneously

Answer Link

Otras preguntas

Which of the four early River Valley Civilizations used central temples known as Ziggurats for religious worship? A. China B. Ancient Egypt C. Mesopotamia D

How does the word gang support the author’s purpose in this sentence? It evokes a positive image of teenagers who are part of a club. It evokes a negative image

Use the drop-down menus to complete each sentence. are organisms that contain more than one cell with membrane-bound organelles and a nucleus. Organisms that co

Within the Mississippian culture these people were the workers.A. CommonersB. SurfsC. EliteD.Grunts

Read the sentence from paragraph 1. Unfortunately he had none of his father's physical repose, and his strength often asserted itself inharmoniously. What does

x+2/2×>1/2 in rational in equalities

Convert 15°C to °F (to the nearest tenth).

A sample of xenon gas collected at a pressure of 948 mm Hg and a temperature of 283 K has a mass of 128 grams. What is the volume of the sample in Liters?

The missing piece of technology that prevented the audio production industry from using the electrical recording system earlier was a device that could the elec

how can you reflect a point over the y axis without graphing it?