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What's the element
Name that Compound
What's the conversion
Molecular formula
????
100
An alkaline earth element that is on the same period as Arsenic. 

What is calcium?

100

oxygen and sodium 

What is Na2O? 

100
Convert 35,000mg to kg. 

What is 0.035kg?


100
A compound of carbon and hydrogen contains 92.3% C and has a molar mass of 78.1 g/mol. What is the molecular formula?

C6H6

100

Group that is very chemically inert?

Noble gases

200

Which halogen is in the same period as Rb

Iodine

200
Name the chemical formula: 

dichlorine heptoxide

What is Cl2O7?
200
Beryllium is a light metal used to fabricate transparent X-ray windows for medical imaging instruments. How many moles of Be are in thin-foil window weighing 3.24g?


0.360mol

200
Find the empirical formula for 15.8% C and 84.2% S

CS2

200

Determine how many sub-atomic particles a 3+ charge iodine has with a mass of 107? 

e= 50

p= 53

n= 54

300

An atom has a mass number of 48, an atomic number of 23 and has a charge of -2. What's the element?

e-=25

n=25

p=23

V

300

Name compound:

Al2(CO3)3

What is aluminum carbonate?

300

6.5g N2O is equivalent to how many moles? 

0.15mol N2O
300

Nicotine contains 74.02% C, 8.710% H, and 17.27% N. The molar mass is 162.3. What is the molecular formula?

C10H14N2

300
How many sig fig are in 0.0030460

5

400

Has a neutral charge and 77 protons.

What is iridium?

400

Name the compound:

Ti2(SO4)3

What is titanium(III) sulfate?

400

Determine the amount of molecules contained in 9.213g of C4H10 and the amount of atoms in hydrogen. 

What is 9.545 x 1022 molecules C4H10 and 9.545 x 1023 atoms H?
400
What is the molecular formula of a compound with a percent  composition of 49.47% C, 5.201% H, 28.84% N, and 16.84% O and molecular mass of 194.2amu?

C8H10N4O2

400
Aspirin is a compound (C9H8O4). Determine the percent composition of all the elements. (3 sig figs)

C= 60.0%

H= 4.48%

O=35.5% 

500

The most electronegativite element on the periodic table.

What is Fluorine? 

500

what is the chemical formula and name for the bonding of

Al (3+) and F

aluminum fluoride

500

Determine the number of moles of the compound and determine the number of moles of each type of atoms: aluminum sulfate. (sig fig: 4)

Al2(SO4)3 = 0.229mol

Al=0.459

S= 0.687

O=2.748

500

Find the empirical formula of 28.03% Mg, 21.6% Si, 1.16% H, and 49.21% O

Mg3Si2H3O8

500

What is the mass of 6.00 cm3 of mercury, the density is 13.5939g/cm3?

81.6g