Elements 6.2 - Comopunds and Mixtures [ARCHIVE] Flashcards
DIFFICULTY RATING: ★★★
What are two examples of molecular compounds?
Water and carbon dioxide. (also acceptable if you listed a molecule that is not here)
What are two examples of lattice compounds?
Diamond and graphite. (also acceptable if you listed a lattice that is not here)
LIST THREE ALLOYS and their uses.
Red gold - wedding rings, bracelets, other jewellery
White gold - necklaces, earrings, rings
Sterling silver - rings, rings with gemstones, bracelets
(also acceptable if you listed an alloy that is not here)
What are the elements and compounds that make up air?
Nitrogen, oxygen, water vapor, argon, and carbon dioxide.
Why can’t you write a chemical formula for a mixture?
As a mixture doesn’t have a fix ratio of components.
Are molecules in compounds identical?
Yes, they are identical in size, shape and number of atoms.
Recall the name given to a particle that contains more than two types of atoms.
Compound.
State how many types of atoms a compound can contain.
2 or more.
State how many types of atoms an element can contain.
1.
The chemical symbol for butane is
C⁴H¹⁰
Specify whether butane is an element or a compound.
Compound.
The chemical symbol for magnesium is
Mg
Specify whether you think magnesium is an element or a compound.
An element.
Are elements Physically, chemicall or bonded together?
Elements have chemical bonds
Do compounds have similiar or different propeties than their original atoms?
Different.
