Chem Sem 1 Exam

Front

What is a synthesis reaction?

Back

A synthesis reaction is a type of chemical reaction where two or more substances combine to form a single product.

Front

What type of reaction is represented by the equation C5H10O4 + O2 --> CO2 + H2O?

Back

This is a combustion reaction, where a substance reacts with oxygen to produce carbon dioxide and water.

Front

What is a cation?

Back

A cation is a positively charged ion.

Front

How many electrons are represented by the electron configuration 1s²2s²2p⁶?

Back

This configuration represents a total of 10 electrons.

Front

What does the number 12.011 represent in chemistry?

Back

12.011 represents the atomic mass of carbon.

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where a single compound breaks down into two or more simpler products.

Front

What is a double replacement reaction?

Back

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

Front

What is the difference between an anion and a cation?

Back

An anion is a negatively charged ion, while a cation is a positively charged ion.

Front

What is the atomic number?

Back

The atomic number is the number of protons in the nucleus of an atom, which determines the element's identity.

Front

What is the significance of the periodic table?

Back

The periodic table organizes elements based on their atomic number, electron configuration, and recurring chemical properties.