Fall Final Review Chemistry

Front

Covalent bonds are formed between which types of elements?

Back

Non-metal and Non-metal

Front

Which substance is likely to have the weakest intermolecular forces based on boiling points?

Back

Substance C, boiling point of 25 °C

Front

What is the chemical name for Na2SO3?

Back

Sodium sulfite

Front

What is a sign that a chemical reaction has occurred?

Back

Formation of a gas

Front

What is the charge of an ion after the element has lost 3 electrons?

Back

+3

Front

What type of bond involves the sharing of electron pairs between atoms?

Back

Covalent bond

Front

What is the primary characteristic of ionic bonds?

Back

They form between metals and non-metals through the transfer of electrons.

Front

What is the significance of boiling point in relation to intermolecular forces?

Back

Higher boiling points indicate stronger intermolecular forces.

Front

What is the formula for calculating the number of protons in an atom?

Back

The number of protons is equal to the atomic number.

Front

What is a common indicator of a physical change?

Back

Change in state (e.g., solid to liquid) without altering the chemical composition.