Câu hỏi giữa kỳ Anh văn chuyên ngành

Front

Molecular weight is the sum of the atomic weights of all the .... in a molecule.

Back

Atoms

Front

In a decomposition reaction, a large molecule is..... into its component molecules, atoms, and ions.

Back

broken down

Front

The smallest unit of any chemical element is called.....

Back

atom

Front

The number of protons in the nucleus is the number of...

Back

atomic

Front

Two molecules that have the same chemical formula but different structures and properties.

Back

Isomers

Front

The Latin prefix "sesqui-" means:

Back

One and a half

Front

A chemical attraction between ions with opposite charges is called a..... bond.

Back

Ionic

Front

What is characterized by both a definite shape and a definite size?

Back

Solid

Front

An element consists of _______ atoms.

Back

Only one kind of

Front

An……… substance is a substance that consists of atoms of only one kind.

Back

elementary