Question

Which of these is a mixture of elements?

a. silver and gold
b. carbon dioxide
c. salt and pepper
d. All of these are mixtures of elements.

Answer 1

A

Step-by-step explanation:

Answer 2

-- Carbon dioxide is a compound of two elements.

-- Salt is a compound.
Pepper is a mixture of compounds.
Salt and pepper together in a shaker is a mixture of more compounds.

-- Silver is an element.
Gold is an element.
Silver and gold together in a shaker is a mixture of elements.