Unit 1 Chem A Exam

Identify as either Chemical or Physical: Water freezes at 0^o C.

• Chemical Property

• Physical Property

Tags

NGSS.MS-PS1-4

Identify as either Chemical or Physical: Paper ignites and burns at 233^o C (451^o F).

• Chemical Property

• Physical Property

Tags

NGSS.MS-PS1-5

Identify as either Chemical or Physical: The atomic density of gold is 19.3 g/cm³

• Chemical Property

• Physical Property

Identify as either Chemical or Physical: Silver will oxidize and "rust" when exposed to water and air for long periods of time.

• Chemical Property

• Physical Property

Tags

NGSS.MS-PS1-2

What is the atomic number for Magnesium (Mg)?

What is the atomic number for Nitrogen (N)?

Which element has the atomic number of 5?

Which element has the atomic number of 17?

Which of the following is the atomic symbol for Fluorine (9)?

• F

• f

• Fl

• fL

Which of the following is the atomic symbol for Sodium (11)?

• N

• na

• Na

• n