Chemistry Dilution/Concentration Problems
Clean Water Unit
Acids and Bases
Periodic Table
100

Explain what dilution is!

Lessening concentration by adding more solvent.

100

Define water scarcity 

 lack of water

100

A ph of 1 is...

acidic

100

What is a period?

horizontal row

200

What does it mean to be more concentrated

More solute in container then solvent!

200

Name the state of the video we watch where toilet to tap was present. And explain toilet to tap.

California

200

a ph of 11 is...

basic

200

 a coulmn (group) is ...

Vertical row


300

If I add 24 drops of lemonade into a cup with 76 drops of water. What is the concentration of lemonade in the water?

24%

300

What does it mean to make water potable?

to make clean/ safe for consumption

300

what is the pH for neutral?

7

300

As you go more into the periodic table it becomes more ...   --->   <----

reactive

400

If I add 2482 drops of lemonade into a cup with 7685 drops of water. What is the concentration of lemonade in the water?

24.41%

400

What country has most waterfootprint on average per person and what country has the least.

USA and Yemen
400
differentiate between a compound and element.


and give and example for a compound and element.

Element is only one type of atom.


compound is 2 or more elements.


400
Name an element responsible for flashy bright signs!!

Neon/Xenon/ 

500

If I add 9 drops of 10% red solution to a cup that contains 9991 drops of water. What is the concentration of the red solution?

0.00009

500

Name the 4 steps of the 7 steps for cleaning water.

Screening, coagulation, flocculation, sedimentation, filtration, disinfection, storage

500
Name a household item that is basic and a household item that is acidic.

Pratham Answers.

500

Name a highly conductive element that is used in Minecraft as a sword.

Fe.