Chemistry Quiz

Chemistry Quiz

University

12 Qs

quiz-placeholder

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Chemistry Quiz

Chemistry Quiz

Assessment

Quiz

Chemistry

University

Practice Problem

Medium

Created by

Darren Hong

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12 questions

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1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following is NOT a step in gravimetric analysis?

Precipitation

Titration

Filtration

Drying

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Bohr’s model of the atom was successful in explaining:

The spectra of multi-electron atoms

The shape of electron orbitals

The quantization of electron energy levels in hydrogen

The uncertainty principle

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Which of the following elements has the highest electronegativity?

Sodium

Carbon

Oxygen

Fluorine

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The wavelength of light emitted when an electron transitions from n=3 to n=2 falls in which region of the electromagnetic spectrum?

Infrared


Ultraviolet

visible

X-ray

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

In the reaction: 2H₂ + O₂ → 2H₂O, which substance is the oxidizing agent?

H₂

O₂

H₂O

None

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the standard enthalpy change of formation (ΔHf°) of an element in its most stable form?

0 kJ/mol

1 kJ/mol

-100 kJ/mol

Depends on the element

7.

OPEN ENDED QUESTION

15 mins • 1 pt

Compare the Bohr model and the quantum mechanical model of the atom. What key improvements does the quantum model offer?

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