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- 1. Multiple Choice
What is a pure substance that cannot be broken down into simpler substances by physical or chemical means?
Compound
Molecule
Element
Atom
- 2. Multiple Choice
What is the smallest particle of an element that retains the chemical identity of an element?
Compound
Molecule
Element
Atom
- 3. Multiple Choice
What is matter that contains a combination of different elements and/or compounds and can be separated by physical means?
Compound
Mixture
Pure Substance
Molecules
- 4. Multiple Choice
Matter is a term used to describe anything that has _________ and takes us ___________.
Volume; Density
Mass; Space
Elements; Space
Mass; Air
- 5. Multiple Choice
An iron nail rusting is what kind of property?
Physical
Chemical
- 6. Multiple Choice
Identifying the texture of the iron nail is what kind of property?
Physical
Chemical
- 7. Multiple Choice
Which one is ductile?
- 8. Multiple Choice
The negatively charged particle in an atom is called the
neutron
proton
electron
ion
- 9. Multiple Choice
The smallest subatomic particle is called the
neutron
proton
electron
ion
- 10. Multiple Choice
The nucleus of an atom is comprised of
protons
protons and electrons
electrons
protons and neutrons
- 11. Multiple Choice
A common phosphorus atom (P) has an atomic mass of 30.974 amu and an atomic number of 15, how many neutrons does it have?
15
16
30
31
- 12. Multiple Choice
Isotopes of the same atom have
the same number of neutrons
the same number of protons
a different number of electrons
a different number of ions
- 13. Multiple Choice
Which of the following is a substance formed by the chemical joining of two or more elements in definite amounts?
compound
isotope
nucleus
enzyme
- 14. Multiple Choice
When sugar is dissolved in water, the water is the
reactant
solution
solute
solvent
- 15. Multiple Choice
1. Use the models of matter to BEST classify each substance.
Model 1 is a compound, Model 2 is a mixture, Model 3 is an element
Model 1 is a compound, Model 2 is an element, Model 3 is a mixture
Model 1 is a mixture, Model 2 is an element, Model 3 is a compound
Model 1 is an element, Model 2 is a compound, Model 3 is a mixture
- 16. Multiple Choice
1. If thermal energy were removed from Model 3, which model BEST represents the new arrangement of particles?
model
model 2
model 3
model 4
- 17. Multiple Choice
1. According to the table, which substance would sink in water?
helium
mercury
oxygen
iron pyrite
- 18. Multiple Choice
1. Melting crayons is an example of _____________.
physical change
physical property
chemical change
chemical property
- 19. Multiple Choice
While outside playing ball, Naisir slid on the ground and ripped a hole in his pants. Choose the statement that correctly identifies the type of change that occurred and the supporting evidence.
A chemical change happened because a new substance was created.
A chemical change happened because there was a permanent change to his pants.
A physical change happened because there is not a new substance being formed.
A physical change happened because he physically slid on the ground to cause the rip.
- 20. Multiple Choice
1. According to the section periodic table, how many protons are in oxygen?
6
8
10
16
- 21. Multiple Choice
Use the section of periodic table to determine what element is represented in the model.
potassium
lithium
sodium
beryllium
- 22. Multiple Choice
When a solid melts, what happens to the speed and arrangement of the molecules?
The particles speed up and are close together
The particles speed up and spread out
The particles slow down and are close together
The particles slow down and spread out
- 23. Multiple Choice
Which of the following is NOT matter?
a chair
air
light
water
- 24. Multiple Choice
Which of the following is pure?
elements only
compounds only
mixtures only
elements and compounds
- 25. Multiple Choice
Which of the following consists of more than one substance?
elements only
compounds only
mixtures only
elements and compounds
- 26. Multiple Choice
Which of the following are types of matter?
elements only
compounds only
mixtures only
all of these
- 27. Multiple Choice
Which of the following is a type of mixture?
elements only
compounds only
solutions only
elements and compounds
- 28. Multiple Choice
1
3
2
4
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