Question 1

Which of the following best describes sodium (Na) in terms of its classification on the periodic table?

Accepted Answer

Main group, metal, alkali metal

Question 2

Neon (Ne) is classified as which of the following?

Accepted Answer

Main group, nonmetal, noble gas

Question 3

Which of the following is the best classification for calcium (Ca)?

Accepted Answer

Main group, metal, alkaline earth metal

Question 4

Gold (Au) is best classified as:

Accepted Answer

Transition group, metal, transition metal

Question 5

Which of the following substances is best described as a homogeneous mixture?

Accepted Answer

Gatorade

Question 6

Which of the following is a chemical property?

Accepted Answer

Acid reacts with limestone

Question 7

Which of the following changes is a physical change?

Accepted Answer

Evaporation of rubbing alcohol

Question 8

Which process is a chemical change?

Accepted Answer

Bleaching of hair with hydrogen peroxide

Question 9

Which of the following best describes graphite?

Accepted Answer

Element, pure substance

Question 10

Which of the following is a heterogeneous mixture?

Accepted Answer

Green salad with all the toppings

Question 11

What is the group and letter designation for the family containing carbon (C) on the periodic table?

Accepted Answer

Group 4A

Question 12

Which of the following pairs of elements are in the same period as iron (Fe)?

Accepted Answer

Copper (Cu) and Zinc (Zn)

Question 13

A student observes that copper sulfate is blue. This observation is best classified as:

Accepted Answer

Physical property

Question 14

Which of the following is a compound?

Accepted Answer

Aluminum oxide

Question 15

Which of the following is a main group element?

Accepted Answer

Neon (Ne)

Question 16

Which of the following is an example of a chemical reaction occurring in everyday life?

Accepted Answer

Burning of lamp oil in a lantern

Question 17

Which of the following best describes the process of acid reacting with limestone?

Accepted Answer

Chemical change

Question 18

Which of the following is a transition metal?

Accepted Answer

Gold (Au)

Question 19

Which of the following is a nonmetal?

Accepted Answer

Neon (Ne)

Question 20

Which of the following is an alkaline earth metal?

Accepted Answer

Calcium (Ca)

Classification of Elements, Substances, and Chemical Changes: Study Notes

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