Compounds and mixtures

A substance are ... combined to form a compound.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

In a given compound, the same atoms are always bonded in a ... ratio.

Tags

NGSS.MS-PS1-1

Compounds are a pure substances because all the molecules are ....

What are chemical bonds?

Tags

NGSS.MS-PS1-1

What are the two different ways to form a chemical bond

• Electrons of respective atoms are shared

• Electrons of respective atoms are divided

• Protons are transferred from one atom to another

• Electrons are transferred from one atom to another

Tags

NGSS.HS-PS1-1

What are the substances called before it is converted into another substances through chemical reactions?

Tags

NGSS.MS-PS1-2

What is the end substances called after a chemical reaction?

Tags

NGSS.MS-PS1-5

What is the name of the reaction when two or more substances react to form a single compound?

• Compound

• Chemical reaction

• Synthesis reaction

• Pure substances

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

How many atoms are in this compound, H₂O.

• 2

• 3

• 9

• 10

Tags

NGSS.MS-PS1-1

Chose the correct definition for a mixture.

• A mixture is a combination of two or more substances that are not chemically combined

• A mixture is a combination of two or more substances that are chemically combined

• A mixture is a combination of clay and water

• A mixture are like seawater