Bonding and Mixtures (Grade 9)
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Bonding and Mixtures
1.
What is an ionic compound that forms when a metal atom or a positive radical replaces the hydrogen of an acid called?
- soap
- salt
- disinfectant
- all of the above
2.
What type of compound is formed when two ions form an ionic bond?
- crystal
- interparticle force
- ionic compound
- covalent bond
3.
A material that has the same composition throughout can be classified as which of the following?
- homogeneous
- heterogeneous
4.
What is a combination of sand and salt that can be separated rather easily called?
- a substance
- a mass
- a mixture
- a property
5.
How many types of bonding are there?
- 15
- 3
- 6
- 4
6.
Chemical bonds are likely to form when
- two atoms have the same number of electrons.
- an atom's outer energy level doesn't have the maximum number of electrons.
- an atom's nucleus has the same number of protons as neutrons.
- an atom's outer energy level is filled.
7.
You and your friend go out for lunch. You order an iced tea and add 4 packets of sugar in the raw (brown sugar) and stir. Even after stirring for 5 minutes, you can still see the sugar in the raw crystals. This is an example of which of the following?
- solution
- acid
- mixture
- suspension
8.
Which of the following is not considered a pure substance?
- Carbon
- Salt (Sodium Chloride)
- Lemonade
- Water
- Iron
9.
Leandra was dissolving ammonia gas in water. In this example, the ammonia gas is
- the solute.
- the solvent.
- the precipitate.
- the solution.
- the element.
10.
The solubility of potassium chloride as its temperature .
- increases; increases
- decreases; decreases
- increases; decreases
- decreases; increases
11.
The attraction between atoms in a molecule or crystalline structure is called a .
- solution
- magnet
- bond
12.
A compound composed of electrically charged atoms is called a(n) compound.
- octet
- chemically stable
- ionic
- covalent
13.
A(n) substance takes up so much water from the air that it forms a liquid solution.
- hydrate
- deliquescent
- hygroscopic
- anhydrous
14.
When hydrated copper sulfate is heated, it loses its water of hydration and becomes copper sulfate.
- anhydrous
- formula
- negative
- oxidation
15.
A solution of two or more metals such as brass is
- an alloy.
- a heterogeneous mixture.
- matter.
- a mixture.
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