Which system serves as the interface between the other spheres? a.
geosphere
b.
hydrosphere
c.
atmosphere
d.
biosphere

Please select the best answer from the choices provided

A
B
C
D

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.

Which statement is true about a catalyst? a: a catalyst decreases the rate of the reaction. b. a catalyst is consumed during a chemical reaction. c. a catalyst lowers the activation energy of a reaction. d. a catalyst increases the reactant concentration during a reaction.

Name a brittle metal , which is used to galvanize iron