IB SL Chemistry Test 3 revision on topics 2, 3 and briefly 4 | Baamboozle - Baamboozle

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A review - model of an atom, periodicity and introductory bonding

Study Slideshow

Ethanoic or acetic acid, CH3COOH, is a weak acid that is often used in the creation of vinegar.Note the two distinctly different bonds between carbon (C) and oxygen (O). Which option contains the correct information of these bonds?

option C

option D

option B

option A

15

Which of the following shows the proper condensed electron configuration of a copper atom (Cu)?

[Ar] 4s2 3d9

1s2 2s2 2p6 3s2 3p6 3d10 4s

[Ar] 3d¹⁰ 4s¹

1s2 2s2 2p6 3s2 3p6 4s2 3d9

15

Choose from the following (see image)

c

b

a

d

15

You may use your electronegativity values in Section 8 of the IB data booklet, determine the bonding in methane (CH4)

an example of ionic bonding

an example of hydrogen bonding

an example of polar covalent bonding

an example of non-polar covalent bonding

10

How many protons, neutrons and electrons?

20 protons, 21 neutrons, 18 electrons

20

Which electron transition in the hydrogen atom emission spectrum emits radiation with the longest wavelength?

. n = 2 → n = 1

n = 1 → n = 2

n = 4 → n = 1

n = 3 → n = 2

15

Which electron transition emits radiation of the longest wavelength?

A

D

C

B

15

Which is the electron configuration of a chromium atom in the ground state?

[Ne]3s2 3p6 4s1 3d4

1s2 2s2 2p6 3s2 3p6 4s2 3d4

[Ar]4s1 3d5

[Ar ]3d3

15

Which electron configuration is correct for the selenide ion, Se2−?

1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p6

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p4

1s2 2s2 2p6 3s2 3p6 4s2 4d10 4p4

1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6

15

Formulate an equation for the reaction of magnesium oxide with water.

MgO(s) + H2O(l) --> Mg(OH)2

15

Describe the structure and bonding in solid magnesium oxide.

a giant ionic lattice with electrostatic attraction between oppositely charged ions

10

15

What is the product of Cl2(g) + KI(aq) --> ?

Cl2(g) + 2KI(aq) --> I2 (s) + 2KCl(aq)

15

What is the product of I2(g) + KBr(aq) --> ?

No reaction because bromine is more reactive

10

Which group does potassium belong to? (name of group)

alkali metals

10

Which group does bromine belong to? (name of group)

halogen

10

IB SL Chemistry Test 3 revision on topics 2, 3 a ...