Subatomic particles
Ionic vs molecular
Acids and bases
Chemical equations/reactions
The mole
100

What element has 12 protons? What charge will its ion have?

Magnesium, 2+

100

Identify the following as ionic or molecular, and name:

KCl

Ionic, potassium chloride

100

What is the Arrhenius definition of a base?

Produces OH-(aq) ions in solution

100

What type of reaction is this?

2NaOH(aq) + H2SO4(aq) --> 2H2O(l) + Na2SO4(aq)

Neutralization

100

What is the molar mass of CH4?

16.05 g/mol

200

How many protons, neutrons and electrons does Fe2+ have?

p: 26, n: 30, e: 24

200

Identify the following as ionic or molecular, and name:

Mn3(PO4)2

Ionic, manganese (II) phosphate

200

Name 3 properties of acids

- conduct electricity

- taste sour

- sticky texture

- pH below 7

200

Predict the products of this formation reaction and balance!

Mg(s) + O2(g) -->

2Mg(s) + O2(g) --> 2MgO(s)

200

How many particles are in 1.3 moles of aluminum?

7.83 E 23 particles

300

What is an isotope?

Atoms with the same number of protons but different numbers of neutrons (ie. different atomic mass)

300

Identify the following as ionic or molecular, and name:

N2O3

Molecular, dinitrogen trioxide

300

Name the following:

H3PO4(aq)

HF(aq)


Phosphoric acid

Hydrofluoric acid

300

What can be used as evidence of a chemical change? Give 3 examples

- energy transfer

- colour change

- precipitate formed

- odour

- gas

- etc

300

How many moles are in 42.1 grams of water?

2.34 mol H2O

400

What are valence electrons?

Electrons in the highest energy level of the atom

400

Name 3 properties of ionic compounds

Ionic: soluble in water, high, melting/boiling points, crystal lattice, conductive in solution...

400

Write the formula for the following:

Sulfurous acid

Permanganic acid

H2SO3(aq)

HMnO4(aq)

400

Predict products and balance the following:

C2H6(g) + O2(g) -->

2C2H6(g) + 7O2(g) --> 6H2O(g) + 4CO2(g)

400

What is the molar mass of zinc hydroxide?

Molar mass Zn(OH)2 = 99.43 g/mol

500

How many electrons does a chlorine atom have? How many are valence electrons?

17 electrons, 7 valence electrons

500

What is the difference between an ionic bond and a covalent (molecular) bond?

Ionic: attraction between positive and negative ions resulting in a transfer of one or more valence electrons

Molecular: sharing of valence electrons

500

Identify each as an acid or a base and name.

CH3COOH (aq)

Ca(OH)2 (aq)

HClO3 (aq)

CH3COOH (aq) - acid, acetic acid

Ca(OH)2 (aq) - base, calcium hydroxide

HClO3 (aq) - acid - chloric acid

500

Balance and give states for the following:

Na3PO4(aq) + MgCl2(aq) --> NaCl( ) + Mg3(PO4)2 ( )

2Na3PO4(aq) + 3MgCl2(aq) 

--> 6NaCl(aq) + Mg3(PO4)2 (s)

500

How many grams of copper (II) chloride are there in 0.32 moles?

43 grams

molar mass CuCl2 = 134.45 g/mol

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