Sem 1 Chemistry Review 2024

Front

Convert 7500.2 cm to meters

Back

75.002 m

Front

How many electrons fit in a d-orbital?

Back

10

Front

What is the shape of an s-orbital?

Back

Spherical

Front

How many valence electrons does sodium have?

Back

1

Front

What is the mass number of an iron atom with 28 neutrons?

Back

54

Front

What is the formula to convert Celsius to Kelvin?

Back

K = °C + 273.15

Front

What is the atomic number of an element?

Back

The number of protons in the nucleus of an atom.

Front

What is the difference between an ionic bond and a covalent bond?

Back

Ionic bonds involve the transfer of electrons, while covalent bonds involve the sharing of electrons.

Front

What is the pH scale used for?

Back

To measure the acidity or basicity of a solution.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction.