Which of the following are decomposition reactions? 1. ch4 (g) + o2 (g) → co2 (g) + h2o (l)
2. cao (s) + co2 (g) → caco3 (s)
3. mg (s) + o2 (g) → mgo (s)
4. pbco3 (s) → pbo (s) + co2 (g)
Then the multiple choice options are:
A. 4 only
B. All are decomposition reactions
C. 2,3 and 4
D. 2 and 3

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=

What is the relationship of air masses and the temperature of oceans?

Although respiratory organs vary across different organisms, they all contain respiratory surfaces that have a large surface area and are extremely thin. explain why having an extremely thin respiratory surface with a large surface area is advantageous for the process of gas exchange