Energy Changes 1:Question 2 A chemical reaction is determined to be endothermic.
Which of the following is true about this reaction?
Select one:
The reaction can only occur at very low temperatures.
Heat is released as a product.
Heat is absorbed during the reaction
The reaction can only occur at very high temperatures.

Subduction zones occur on earth where dense oceanic crust dives under more buoyant continental crust. these boundaries are characterized by a deep ocean trench next to a high continental mountain range, large numbers of earthquakes and volcanoes. all of this is further evidence for the a) big bang theory b) origin of the species eliminate c theory of plate tectonics d theory of natural selection 4 sedimentary rocks found high in the himalayen mountain

In what environment would mineral formation caused by high pressures and high temperatures most likely occur?

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.