Vera is studying oxidation states. She learns that the oxidation state of fluorine is always -1 in all its compounds. What is the oxidation state of fluorine in F2?

Bongani is learning about reducing agents. He understands that a reducing agent causes reduction of another substance and is itself oxidized. In the reaction: CuO + H2 → Cu + H2O, which is the reducing agent?

Rania is studying cathodic protection. She learns that cathodic protection involves making the metal the cathode to prevent corrosion. Which of the following uses cathodic protection?

Mohamed is learning about prevention of corrosion. He understands that painting is a common method to prevent corrosion. How does painting prevent corrosion?

What is the oxidation state of Cl in NaCl?

An oxidizing agent is a substance that:

Bilal is learning about reduction in terms of gain of electrons. He understands that reduction involves the gain of electrons. Which of the following represents reduction?

Qasim is learning about oxidizing and reducing agents. He understands that a substance that causes oxidation is an oxidizing agent. In the reaction: 2Mg + O2 → 2MgO, what is the oxidizing agent?

Paula is studying galvanizing. She learns that galvanizing is the process of coating iron or steel with zinc. Why is zinc used in galvanizing?

Usman is learning about the formula of ionic compounds. He knows that the formula is written by balancing the charges. What is the formula of the ionic compound formed between calcium (Ca2+) and phosphate (PO4^3-)?