Which of the following is not considered a major component of the troposphere?

Match the term with the correct statement by writing the appropriate number in each box.  Each term is worth 1 mark.

What volume of a 10 mol/L H2SO4 solution is needed to make 1 L of 1.0 mol/L solution of H2SO4?

The following is the equation for the electrolysis of water:  2H2O -> 2H2 + O2 The number of moles of H2, produced by the electrolysis of 4 moles of water is:

What is the molar mass of NaOH?

The prediction of the amount of product that is produced in a reaction calculated from the balanced chemical equation is the:

How many moles are 3.011 x 1024 atoms of gold?

Explain how a protective coating helps to prevent corrosion. (2 marks)

Pangea initially separated into two parts, the southern part is called ____. 

All of the most common rock-forming minerals in Earth’s crust are silicate minerals