What is an endothermic reaction?
a. it is a reaction that keeps heat contained within it.
b. it is a reaction that releases heat to its surroundings.
c. it is a reaction that draws heat from its surroundings.
d. it is a reaction that occurs within a narrow temperature range.

Asolution has a ca2+ concentration of 0.049 m and an f- concentration is 0.147 m at equilibrium. the value of ksp for caf2 at 25°c is 4.0 x 10-11. will this solution form a precipitate? yes no

Imagine that you’re getting ready to move to a new city. when people move, they are influenced by push factors and pull factors, and you have many reasons for your move. which of the following factors is an example of a pull factor? a. wanting to move because you’ve found a great new school somewhere new b. needing to move because there are not enough resources in your old hometown c. being forced to move because your old home is gone d. having to move because there are no jobs in your current hometown

What are four significant sources of ghgs that come from wostem washington?