TCI - UNIT 1 LESSON 3 - SUBSTANCES AND THEIR PROPERTIES

Front

What is a solubility test used for in identifying substances?

Back

A solubility test is useful for identifying liquids that are soluble in other liquids.

Front

What does a burning splint test help scientists identify?

Back

A burning splint test helps identify a substance by holding a burning splint next to it.

Tags

NGSS.MS-PS1-2

Front

How many atoms need to combine before a substance becomes visible?

Back

About trillions of trillions of atoms need to combine until a substance is visible.

Front

What happens to silver when a solubility test is performed using nitric acid?

Back

Silver would dissolve completely into the nitric acid.

Tags

NGSS.MS-PS1-2

Front

What is the result of separating a mixture into all of its component pieces?

Back

The remaining substances would be pure substances.

Front

Define a pure substance.

Back

A pure substance is a material that has a constant composition and consistent properties throughout.

Tags

NGSS.MS-PS1-4

Front

What is the difference between a mixture and a pure substance?

Back

A mixture contains two or more substances that are not chemically combined, while a pure substance has a uniform and definite composition.

Front

What is solubility?

Back

Solubility is the ability of a substance to dissolve in a solvent, forming a solution.

Front

What is the significance of using nitric acid in identifying metals?

Back

Nitric acid can dissolve certain metals, which helps in identifying them based on their reactivity.

Tags

NGSS.MS-PS1-2

Front

What is the role of a burning splint in chemical tests?

Back

A burning splint is used to test for the presence of gases, such as oxygen or hydrogen, by observing the reaction.

Tags

NGSS.MS-PS1-2