Manganese Nitrate and Ion Charges

The video tutorial explains how to write the chemical formula for manganese seven nitrate. It begins by identifying the element symbol for manganese and the significance of the Roman numeral seven, indicating a +7 charge. The tutorial then discusses the nitrate ion, a polyatomic ion with a -1 charge, and how to balance these charges to form a neutral compound. By using seven nitrate ions, the charges are balanced, resulting in the formula Mn(NO3)7. The video concludes with a summary of the process.

What is the element symbol for manganese?

• Mg

• Ma

• Mo

• Mn

What does the Roman numeral seven indicate in manganese seven nitrate?

• The atomic number of manganese

• The charge of the manganese ion

• The number of nitrate ions

• The number of electrons in manganese

What is the charge of the nitrate ion?

• 1+

• 3-

• 2-

• 1-

Why is the nitrate ion considered a polyatomic ion?

• It has a single atom

• It consists of multiple atoms

• It is found on the periodic table

• It is a noble gas

How many nitrate ions are needed to balance the charge of manganese in manganese seven nitrate?

• Five

• Eight

• Six

• Seven

What is the net charge of manganese seven nitrate?

• 0

• 7+

• 1+

• 2-

What is the correct formula for manganese seven nitrate?

• Mn(NO3)6

• Mn(NO3)8

• Mn(NO3)5

• Mn(NO3)7