Lightning and Chemical Reactions

Front

What is the product of the reaction between Ag₃N and KCl?

Back

The products are AgCl and K₃N.

Front

Which metal can displace calcium in a reaction with Ca(NO₃)₂?

Back

Strontium (Sr) can displace calcium.

Front

What are the products of the combustion of ethylene (C₂H₄) with oxygen (O₂)?

Back

The products are carbon dioxide (CO₂) and water (H₂O).

Front

What is the expected product when nickel (Ni) reacts with platinum(IV) chloride (PtCl₄)?

Back

The expected products are nickel(II) chloride (NiCl₂) and platinum (Pt).

Front

Which metal reacts with nitric acid (HNO₃) to produce hydrogen gas?

Back

Potassium (K) reacts with HNO₃ to produce hydrogen gas.

Front

Define the activity series of metals.

Back

The activity series is a list of metals arranged in order of decreasing reactivity.

Front

What is a double displacement reaction?

Back

A double displacement reaction is a chemical reaction where two compounds exchange ions or bonds to form two new compounds.

Front

What is the general formula for combustion reactions?

Back

The general formula is Hydrocarbon + O₂ → CO₂ + H₂O.

Front

What is the significance of balancing chemical equations?

Back

Balancing chemical equations ensures the law of conservation of mass is followed, meaning the number of atoms of each element is the same on both sides.

Front

What is a precipitate in a chemical reaction?

Back

A precipitate is a solid that forms and settles out of a liquid mixture during a chemical reaction.