B. What mass of iron(Fe)can be obtained from 3.80g iron(III) oxide(Fe2O3)reacting with excess carbon monoxide (CO)? Given unit: Answer unit: Solution:

Write a paragraph that provides examples of each stage of volcanic activity, a description of the volcano, and facts about each stage.

What the blanks in these lines are ?

Suppose a pair of chemical compounds a and b can react in two different ways: a + b -> c reaction 1 gives product c. a + b -> d reaction 2 gives product d. the following facts are known about the two reactions: . reaction 1 is endothermic and reaction 2 is exothermic. if a reaction vessel is charged (filled) with a and b , then at first d is produced faster than c. use these facts to sketch a qualitative reaction energy diagram for both reactions. note: because these sketches are only qualitative, the energies don? t have to be exact. they only have to have the right relationship to each other. for example, if one energy is less than another, that fact should be clear in your sketch.