Question

to a solution, more solvent is added to a solution.
a. dissolve
b. melt
c. dilute
a(n) is a mixture that includes different types of metals.
a. metallic solution
b. alloy
c. pure gold nugget
which of these is an alloy?
a. brass
b. iron
c. carbon
which of these explains how colored gold is created?
a. white gold is an alloy of yellow gold and white paint.
b. pink gold is an alloy of yellow gold and copper metals.
c. rose gold is an alloy of yellow gold and iron.

Explanation:

• For the first question, diluting a solution means adding more solvent. Dissolve refers to a solute dissolving in a solvent, and melt is about a solid turning to liquid.
• An alloy is a mixture of different metals. A metallic solution is a general term but alloy is more specific for metal - metal mixtures. A pure gold nugget is not a mixture.
• Brass is an alloy (copper and zinc). Iron is an element, and carbon is a non - metal (in the context of common alloys).
• Pink gold is made by alloying yellow gold with copper. White gold is usually alloyed with metals like palladium or nickel (not paint), and rose gold is often an alloy of gold and copper (not iron).

Answer:

a.9) C. dilute
a.10) B. alloy
a.11) A. brass
a.12) B. Pink gold is an alloy of yellow gold and copper metals.