Module 1
Module 2
Module 3
Practice Exam
Random Question
100

Convert 180 F to C

82.22°C

100

What is a polyatomic oxo anion?

A polyatomic oxoanion is a type of ion composed of atoms of oxygen and another element (or elements) bonded together. These ions typically contain one or more oxygen atoms and one or more atoms of another element, forming a negatively charged ion.

100

What is a mole?

 mole is a unit used to measure the amount of a substance

100

. What is an acid? What is a base?

acids have pH values ranging from 1 to 7 whereas bases have pH values ranging from 7 to 14

100

Peer Leader favorite holiday 

Halloween 


200

510.070 into scientific notation

5.10070×102

200

Give name of the first four alkanes 

methane, ethane, propane, butane 

200

What is the molar mass of glucose?

180.156 g/mol

200

What is the formula of magnesium phosphide?

Mg3P2

200

how many characters can fit on twitter

280

300

Convert 758 Gigameters into Picometers

7.58 × 10^17 picometers  

300

What is the formula for bromite, bromite, and hypobromite?

BrO3−., BrO2−., BrO−.

300

How many moles in 200 grams of glucose??

1.110 moles

300

An element has 32 protons in its nucleus.What is the mass in kilograms of a sample containing 2.4 x 10^24 atoms of this element?

0.2902 kilograms

300

What is the capital of China?

Beijing

400

Convert 100 Kilograms to nanograms  

1.0×10^14

400

Name this H2SO3, HClO4, HClO3

sulfurous acid, perchloric acid,and chloric acid 

400

How many molecules in 650 grams of glucose? 

2.17×1024 molecules

400

What is the empirical formula for acetic acid (CH3COOH)?  

 CH2O 


400

Names of all golden girls 

Dorothy,  Rose, Blanche and Sophia

500

(128.56+56.788)×23.45

4348.

500

Explain the rules for polyatomic oxoanions, acids, and bases 

x

500

How many atoms of oxygen in 650 grams of glucose

1.3 x10 25atoms of oxygen

500

A laboratory analysis of an unknown organic solid determined the following mass percent composition of the sample: 75.73% C, 8.74% H, 15.53% O. What is the empirical formula for this compound?

C6H9O

500

So far, which continent has hosted the Olympics the most times?

Europe 

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