An excess of zinc is added to 100 cm3 of 1.0 mol/dm3 hydrochloric acid, The equation for the reaction is:
Zn + 2HCI → ZnCl2 + H2
What is the maximum volume of hydrogen evolved at room temperature and pressure?
A) 1.2 dm3 C) 2.4 dm3
B) 2.0 dm3 D) 24 dm3

What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .

Suppose that a certain fortunate person has a net worth of $71.0 billion ($7.10×1010). if her stock has a good year and gains $3.20 billion (3.20×109) in value, what is her new net worth?