Chempardy Unit 2

Electrons

100

The number of valence electrons in Phosphorous

5 valence electrons

200

The molecular shape of H2O

What is bent

300

The molecular geometry of phosphate

What is Tetrahedral 

400

The electron configuration of Cl (non abbreviated)

What is 1s²2s²2p⁶3s²3p⁵

500

The correct electron orbital diagram for Se

Look to picture

Naming

100

The formula for Calcium Chloride

What is CaCl_2?

200

The name for SO₂

What is Sulfur Dioxide

300

What is the formula for Zinc (II) Nitride

Zn₃N₂

400

The name of this compound--Be(ClO₄)₂

What is Beryllium Perchlorate

500

The name of FePO₄

What is Iron (III) Phosphate

Reactions/Compounds

100

This compound forms between Ga and Se

Ga₂Se₃

200

This compound forms between H and CO₃

What is H₂CO3

300

This type of ion almost always applies to nonmetals

what is anion

400

The correct values for the blanks below are: 

___ H3PO4 + ___ KOH ---> ____K3PO4 + ___ H2O

What is 1,3,1, and 3

1H3PO4 + 3KOH---> 1 K3PO4 + 3 H2O

500

The correct values for the blanks below are: 

___Na + ___NaNO3 --->___Na2O + __N2

What is 10, 2, 6, and 1

10 Na + 2NaNO3---> 6Na2O +1N2

Bonds/Polarity

100

Which is more electronegative, arsenic or sulfur?

What is sulfur

200

The electronegativity difference of C-O bonds 

What is 1.0

300

The arrow points towards this element in a P-Cl bond

What is towards Cl

400

The compound CH₂O is this type of compound (polar or non polar)

What is polar

500

The bond angle for a polar structure with 2 loan pairs and 2 bonded atoms

What is 109^o

Elemental Conversions

100

The number of atoms in 1 mol of K

What is 6.02X10²³

200

The molar mass of NaHCO₃

What is 84.007 g/mol

300

The number of moles in 3.01 x 10²³ atoms of Na

0.5 mols

400

The number of mols in 330.786 g of Potassium Sulfide

3 mols K₂S

500

The number of moles of N₂ needed for the reaction of 7 moles of H_{2. (round to 3 sig figs)}

N₂ + 3H₂ -->2NH₃

What is 2.33 moles of N₂?