Amplify - Chemical Reactions - Chapter 1 Flashcard

Front

How often do chemists from a city's water department test the water supply?

Back

every day

Tags

NGSS.MS-PS1-2

Front

Where did Dr. Yung (the chemist near Westfield) find the reddish-brown substance when she examined all the possible sources?

Back

coming from the pipes into the houses

Front

When examining the following evidence, which is the best evidence we should use?

Options: ugly color, solid; white, small pieces; white, small, grainy, crystals

Back

white, small, grainy, crystals

Tags

NGSS.MS-PS1-2

Front

Do the descriptions of Substance 1 (white, small, grainy, crystals) and Substance 2 (black, fine powder) support that they are the same substances?

Back

YES

Front

Substance 1: white, small, grainy, crystals. Substance 2: black, fine powder. What is the best explanation for why this substance is the same or different?

Back

The visual properties of the two substances are different.

Front

Are these two samples the same substance?

Back

They are different substances because they have different atoms making them up.

Tags

NGSS.MS-PS1-1

Front

Select the FALSE definition for "Repeating groups of atoms". Options:

Repeating atoms are atoms that replicate themself.

,

Repeating groups of atoms are substances made of the same group of atoms repeated over and over.

,

Molecules are groups of atoms that form specific groups that are each separate and can range in size from two atoms to thousands of atoms.

,

Extended structures are substances that in solid phase are made of many atoms or many groups of atoms that connect to form a large structures called crystals.

Back

Repeating atoms are atoms that replicate themself.

Tags

NGSS.MS-PS1-1

Front

Why do different substances have different properties?

Back

They are made of different groups of atoms.

Tags

NGSS.MS-PS1-1

Front

The tiny pieces that all matter--all the stuff in the world--is made of ...

Back

atoms

Tags

NGSS.MS-PS1-1

Front

The temperature at which a substance changes from the liquid phase to the gas phase.

Back

boiling point

Tags

NGSS.MS-PS1-4