Elements, Compounds, and Mixtures

Question 1

Caffeine contains hydrogen, carbon, nitrogen, and oxygen atoms in a fixed ratio.

Revolt · Accepted Answer

B: compound

Question 2

Sports drinks contain sugar, salt, and flavorings dissolved in water. They can be made more or less sweet by adding different amounts of sugar.

Revolt · Accepted Answer

A: mixture

Question 3

Soda is a mixture. The ingredients list for a can of soda is given below.The ingredients of the soda are best described as .

Revolt · Accepted Answer

B: compounds

Question 4

To separate a mixture of hard candies and marbles, the most efficient method would be .

Revolt · Accepted Answer

B: sorting the mixture by hand

Question 5

To separate a mixture of iron filings and salt, the most efficient method would be .

Revolt · Accepted Answer

A: passing a magnet through the mixture

Question 6

To separate a mixture of large gravel and sand, the most efficient method would be .

Revolt · Accepted Answer

C: passing the mixture through a sieve

Elements, Compounds, and Mixtures Answers