CHEM Jeopardy

Ionic Charges

100

Mg

2+

200

P

3-

300

Kr

0

400

SO₃

S^2- and O₃^2-

500

CO₂

C⁺, O₂^2-

Equations

100

Mass number

number of protons + number of neutrons

200

Number of neutrons

Mass number (A) - Atomic Number (Z)

300

% yield

(actual yield/theoretical yield) x 100%

400

Molarity

moles of solute/L of solution

500

How do we find percent by mass?

mass of solute/mass of solution x 100%

Conversions

100

Convert 32.0 dm/s to km/hr

11.5 km/hr

200

convert 6.0 x 10⁷mg to Mg

6 x 10¹⁰Mg

300

convert 22in³ to m³ (1in = 2.54 cm)

3.6 x 10^-4 m³

500

How many atoms of C are in 72.5g of rubbing alcohol (C₃H₈O)?

3.05 x 10²⁴ C atoms

Naming Compounds

100

What is the element symbol of water

H₂O

200

What is the element symbol of Perchlorate

ClO₄-

300

What is the Element Symbol of Nitrate (include charge)

NO₃-

400

What is the Charge on SO₃ (Sulfite)

2-

500

What is CH₃CO₂-

Acetate