The Nature of Matter

What is a pure substance that cannot be broken down into simpler substances by physical or chemical means?

• Compound

• Molecule

• Element

• Atom

What is the smallest particle of an element that retains the chemical identity of an element?

• Compound

• Molecule

• Element

• Atom

What is matter that contains a combination of different elements and/or compounds and can be separated by physical means?

• Compound

• Mixture

• Pure Substance

• Molecules

Matter is a term used to describe anything that has _________ and takes us ___________.

• Volume; Density

• Mass; Space

• Elements; Space

• Mass; Air

Match the following

• matter

• a combination of two or more substances physically blended together

• atom

• a substance that consists of just one type of atom

• mixture

• anything that has mass and takes up space

• element

• a small particle that is a building block of matter

One particle of table salt (NaCl) is best described as a (a)   .

• atom

• compound

• element

• mixture

Answer explanation

Table salt (NaCl) is a compound because it is made up of two different elements, sodium (Na) and chlorine (Cl), chemically bonded together.

Tags

NGSS.MS-PS1-1

An iron nail rusting is what kind of property?

• Physical

• Chemical

Most solids on Earth are __________?

• Crystalline

• Amorphous

• Both Crystalline and Amorphous

• None of the above

A bungee cord is a _____________ solid because it’s elastic, soft, and made of rubber.

• Crystalline

• Amorphous

• Both

• None of the above

Identifying the texture of the iron nail is what kind of property?

• Physical

• Chemical