1. Activation energy is ___

A) The heat released in a reaction

B) The energy barrier between reactants and products

C) The energy given off when reactants collide

D) Generally very high for a reaction that takes place rapidly

A 276.0 g piece of granite, heated to 596.0°C in a campfire, is dropped into 1.45 L water (d = 1.00 g/mL) at 25.0°C. The molar heat capacity of water is cp, water = 75.3 J / (mol ·°C), and the specific heat of granite is cs, granite = 0.

A car with constant speed travelso 150 km in 7200 seconds what is the speed of the car

If element x has 55 protons how many electrons does it have

Shooting a rock with a slingshot converts energy to energy. A. potential, thermal B. sound, light C. kinetic, potential D. elastic, kinetic

Are elements with similar chemical properties found in the same period or group on the periodic table?

What is the n factor of Ba (MnO4) 2 in acidic medium when it reacts with H2O2?

What organelle is primarily used in respiration

Which of the following planetary objects have the most affect on Earth's tides? sun Mars moon Venus

Ionic compounds are formed by the ... of electrons? by the what?

What is it called when energy is created without oxygen?