Elements
Compounds
Heterogeneous Mixtures
Homogeneous Mixtures
Random Review
100
An element consists of __________ kind of atom throughout.
one
100
A compound consists of ______________ kinds of atoms chemically bound to each other.
two or more
100
In heterogeneous mixtures, particles are distributed ________________.
unevenly.
100
In homogeneous mixtures, substances are ____________ distributed.
evenly
100
All matter is made up of ___________________.
atoms and molecules
200
What element are the roofs of parliament made of?
Copper
200
Which of the these is a compound?
A. Helium
B. Baking Soda
C. Sea Water
B. Baking Soda
200
True or false: heterogenous mixtures can be a mixture of solids, liquids, and/or gases.
True.
Mixtures can be any combination of all states of matter: solids, liquids, and gases.
200
True or false: Gatorade is a homogenous mixture
true
200
All __________ are made up of one type of substance, NOT 2 substances mixed together.
pure substance
300
How does a mixture differ from a Pure Substance?
Mixtures can be separated by physical means and Pure Substances cannot.
300
Do Compounds always have a set ratio of elements? (Ex. O2)
Yes.
Water is always made of two hydrogen and 1 oxygen
300
Provide 3 examples of heterogeneous mixtures.
vegetable soup, oil and water, cereal, etc
300
Provide 3 examples of homogeneous mixtures.
koolaid, food dye and water, salt water, etc
300
True or false: The particles in boiling water are moving slower than the particles in an ice cube.
False.
Particles at higher thermal energy move faster than those at lower thermal energy.
400
An Element is the same as a Pure Substance: True Or False
True
400
Which of these statements are true about compound?
A. Compounds can be found in the periodic table.
B. Compounds are pure substances.
C. Compounds are made up of two or more pure substances.
D. Compounds can be separated by physical means.
B and C
Compounds are pure substances and are made up of two or more elements.
*Elements can be found in the periodic table.
*Compounds can only be separated by chemical means.
400
Is a heterogeneous mixture chemically bonded?
No. Heterogeneous mixtures are combined but not chemically like compounds.
400
Does mixing oil and water create a homogeneous mixture? Why or why not?
Mixing oil and water creates a heterogeneous mixture because we can see the oil and the water.
400
What are the two requirements to be considered matter?
Mass and Volume
498
Where you will find all elements.
Periodic table of elements
498
Why does air not have a definite formula?
(For example: water's formula is H20)
Air does not have a definite formula because it is not a compound.
Air is a mixture because it is a mixture of multiple different compounds like oxygen, carbon dioxide, hydrogen, and more.
498
If I have a coffee with milk, a caesar salad, trail mix and a yogurt for lunch, which of the these are heterogeneous mixtures?
caesar salad and trail mix are heterogeneous mixtures.
498
What is another term we can use for homogeneous mixtures that contains a solute and solvent
Solution
498
In what 2 phase changes do particles slow down:
A) Melting and Freezing
B) Evaporation and Condensation
C) Condensation and freezing
freezing and condensation