Basic Chemistry

What is the symbol for Iron?

• Ir

• Fr

• Fe

• In

How many atoms of sodium (Na) are in one molecule of baking soda?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What is the chemical symbol for carbon?

• C

• Ca

• Cn

• Crn

How many atoms make up one molecule of laughing gas?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

In a chemical reaction or change a new substance is not created.

• true

• false

Tags

NGSS.MS-PS1-5

NGSS.MS-PS1-2

a charged atom

• neutral

• isotope

• ion

• nucleus

Tags

NGSS.MS-PS2-5

What is a reactant?

• The starting substance
• The ending substance

What is a product?

• The starting substance
• The ending substance

Tags

NGSS.MS-PS1-5

What is a pure substance that cannot be broken down into any other substance by physical or chemical means. Ex: Gold, Silver, Oxygen, & Nitrogen

• element
• compound
• mixture
• salad

What type of property can only be observed by changing the substance into a new substance. Ex: Flammability, oxidation

• chemical
• physical

Tags

NGSS.MS-PS1-2