White Powders Chemistry

Describe the appearance:

• Fine

• Coarse

• Fine & Coarse

• Crystals

In the Mystery Powder Gizmo, Which test is a NEUTRAL?

• 
• 
• 

What is the WRONG way to analyze this?

• litmus test

• iodine test

• taste test

• acid test

Touching the tip of a dropper to the plastic tray:

• bad policy

• good technique

• bad technique

• contamination

This shows the presence of what substance?

• baking soda

• baking powder

• corn starch

• unable to determine without more testing

Which substance will NOT react with acid?

• baking soda

• baking powder

• corn starch

• sodium bicarbonate

A litmus paper square in the Iodine bottle is an example of:

• good technique

• an accident

• contamination

• bad technique

What should you do if your scooping spoon has a white substance on it?

• wash it first

• use it anyway

• wipe it on your shirt / pants

Jonah saved time and material by using one bowl for all three tests:

• efficient and frugal technique

• poor and wasteful technique

• each test needs its own bowl for observation

• intelligent technique

This shows the substance is a/an:

• acid

• base

• neutral

Tags

NGSS.MS-PS1-2