Which of the following demonstrates a double-replacement reaction?
a. na3po4 + mncl2 mn3(po4)2 + nacl
b. 2agno3 + cu 2ag + cu(no3)2
c. 2mg + o2 2mgo
d. caco3 cao + co2

What is conserved in the reaction shown below? h2(g) + cl2 (g) --> 2hcl(g)a. mass onlyb. mass and moles onlyc. mass, moles, and molecules onlyd. mass, moles, molecules, and volume

Which of two curves exhibits exponential growth

An unknown substance has been shown to have metallic bonds. which of the following is most likely a property of this substance? a. low conductivity b. low boiling point c. high malleability d. high solubility in water