Name the stage of development     074.jpg 

Name the pointed layer and stage    053.jpg 

Name the pointed structure      032(1).jpg 

Name the pointed structure     007.jpg 

Name of the organ   011(1).jpg 

Name the pointed structure      026.jpg 

Name the pointed structure     035.jpg 

[OH-] = 1.0 x 10-4.  What is the concentration of [H+]?

A sample of gas occupies 15.0 liters at a pressure of 2.00 atm and a temperature of 300 K.  If the pressure is lowered to 1.00 atm and the temperature is raised to 400 K, the volume of the gas sample would be:

Given the reaction: 2 KClO3(s)  –>  2 KCl(s)  +  3 O2(g) What is the total number of moles of potassium chlorate needed to produce 6.0 moles of O2?