Reactions of Metals with Acids

What happens when metals react with acids?

• The metal dissolves completely.

• The metal fizzes as bubbles are produced.

• The metal changes color.

• The metal becomes solid.

What sound indicates the presence of hydrogen gas when tested with a burning splint?

• A loud bang.

• A hissing sound.

• A squeaky pop.

• No sound.

What is the role of the burning splint in the test for hydrogen gas?

• To cool the gas.

• To ignite the gas.

• To absorb the gas.

• To change the color of the gas.

What is the main observation when a burning splint is used in the test for hydrogen?

• The splint extinguishes.

• The splint changes color.

• A squeaky pop sound is heard.

• The splint melts.

Which of the following is NOT a product of the reaction between magnesium and acid?

• Hydrogen gas

• Water

• Magnesium chloride

• Oxygen gas

What is the general reaction formula for a metal reacting with an acid?

• Metal + acid = salt + oxygen

• Metal + acid = salt + hydrogen

• Metal + acid = metal oxide + water

• Metal + acid = metal hydroxide + carbon dioxide

What is the product formed when magnesium reacts with nitric acid?

• Magnesium nitrate

• Magnesium sulfate

• Magnesium chloride

• Magnesium oxide

What happens to metals that are below hydrogen in the reactivity series when they react with dilute acids?

• They react vigorously

• They do not react

• They explode

• They dissolve completely