1. Which of the following substances are elements? Explain
how you determined your answer.
(a) bronze
(b) tin
(C) chromium
(d) solder
(e) propane
(f) arsenic
(g) nickel

Respuesta :

B, C, F, and G are all elements

How did I determine that answer? I looked at a periodic table.

Tin - Sn
Chromium - Cr
Arsenic - As
Nickel - Ni

Bronze is a copper alloy, not an element.
Solder is an alloy made of led or tin (sometimes brass or silver)
Propane is Alkane made up of Carbon and Hydrogen

Substances that can be regarded as elements are;

Tin

Chromium

Arsenic

Nickel .

  • Chemical elements can be regarded as substance that are required to form compounds in chemical reactions.

  • The elements in this question are Tin ,Chromium ,Arsenic ,Nickel, i can know this by checking the periodic table which gives the arrangements of all elements.

  • Solder, Bronze can be regarded as alloy because it contains more than one metal element. Propane is a compound.

Therefore, periodic table contains all the elements.

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