Chemistry 121 Chapter 1 Part 2

20 Questions | By Roadman19771 | Last updated: Jul 30, 2011 | Total Attempts: 639

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Study for chemistry test 1

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1.

Anything that is made up of two substances where the substances retain their identities.
- A.
  
  Atoms
- B.
  
  Mixture
- C.
  
  Compound
2.

A mixture that has the same composition throughout.
- A.
  
  Homogeneous
- B.
  
  Hetrogeneous
3.

The composition is not uniform (iron and sand remain totally separated in the mixture).
- A.
  
  Homogeneous
- B.
  
  Hetrogeneous
4.

A mixture of sand and salt
- A.
  
  Hetrogeneous
- B.
  
  Homogeneous
5.

A cup of coffee with two sugars.
- A.
  
  Hetrogeneous
- B.
  
  Homogeneous
6.

An alloy of copper and tin.
- A.
  
  Homogeneous
- B.
  
  Hetrogeneous
7.

A draw of black and grey socks.
- A.
  
  Homogeneous
- B.
  
  Hetrogeneous
8.

A slice of pizza.
- A.
  
  Homogeneous
- B.
  
  Hetrogeneous
9.

A substance that cannot be broken down into any simpler structure.
- A.
  
  Atom
- B.
  
  Chemical
- C.
  
  Element
10.

__________ elements have been identified.
- A.
  
  113
- B.
  
  231
- C.
  
  542
11.

Two or more elements joined chemically in fixed proportions.
- A.
  
  Compound
- B.
  
  Atom
- C.
  
  Molecules
12.

Compounds can only be separated into their pure components (elements) by _________ means.
- A.
  
  Organic
- B.
  
  Liquid
- C.
  
  Chemical
13.

In this state of matter the particles making up the material are all packed close together and they touch one another.
- A.
  
  Gas
- B.
  
  Solid
- C.
  
  Liquid
14.

In this state of matter the particles making up the material are a little further apart but still are in contact with one another.
- A.
  
  Liquid
- B.
  
  Gas
- C.
  
  Solid
15.

In this state of matter the particles making up the material are very far apart and have no contact with one another.
- A.
  
  Liquid
- B.
  
  Solid
- C.
  
  Gas
16.

Ice melts at ____________
- A.
  
  2 celsius (33 fahrenheit)
- B.
  
  0 celsius (0 fahrenheit)
- C.
  
  -11 celsius (12 fahrenheit)
17.

Melting point of iron is ____________
- A.
  
  1538 Celsius (2800 fahrenheit)
- B.
  
  0 celsius (0 fahrenheit)
- C.
  
  -11 celsius (12 fahrenheit)
18.

Boiling point of iron is _____________.
- A.
  
  1538 Celsius (2800 fahrenheit)
- B.
  
  0 celsius (0 fahrenheit)
- C.
  
  2861 celsius (5182 fahrenheit)
19.

Melting point of mercury is ____________
- A.
  
  1538 Celsius (2800 fahrenheit)
- B.
  
  -38 celsius (-36 fahrenheit)
- C.
  
  2861 celsius (5182 fahrenheit)
20.

Boiling point of helium.
- A.
  
  -268 celsius (-450 fahrenheit)
- B.
  
  -38 celsius (-36 fahrenheit)
- C.
  
  2861 celsius (5182 fahrenheit)

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