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Chapter 1 and 2
What is Chemistry? and Numerical Side of Chemistry
25
Chemistry
Undergraduate 1
02/20/2019

Additional Chemistry Flashcards

 


 

Cards

Term
Homogeneous Mixture
Definition
The composition of the mixture is identical throughout.
Term
Heterogeneous mixture
Definition
The composition is not identical throughout
Term
Physical Transformations
Definition
Converting matter from one state to another state
Term

Identify the following as physical or chemical change;

 

Dissolving sugar in water 

Definition
Physical Change
Term

Identify the following as physical or chemical change;

 

Rusting of iron

Definition
Chemical Change
Term
A dilute sugar solution is an example of a
Definition
Homogeneous mixture
Term

Which of the following is an example of a heterogenous mixture?

 

Sea water

Steel

Chicken noodle soup

Milk

Definition
Chicken noodle soup
Term

Classify the following as science or technology.

 

Trying to understand where the Sun gets its energy.

Definition
Science
Term

Classify the following as science or technology.

 

The invention of the transistor.

Definition
Technology
Term

Identify the following as physical or chemical change;

 

Adding electricity to water to produce hydrogen and oxygen

Definition
Chemical Change
Term
Identify the following as physical or chemical change; Liquid water freezing into ice cubes
Definition
Physical Change
Term
_______ is usually exact, but ___________ on the other hand are subject to error.
Definition
Counting, measurements
Term
0.00607 has ______ significant figure(s)
Definition
three
Term
0.03 has _____ significant figure(s)
Definition
one
Term
0.0025 has _____ significant figures
Definition
two
Term
Zeros in front of all other digits (Leading zeros) are always/never significant.
Definition
never
Term
Trailing zeros (zeros after last non zero digits) are/are not significant if there is a decimal point.
Definition
are
Term
In scientific notation 300,000,000 can be written as ___________
Definition
3 X 108
Term
The unit of specific heat is _______ or _______.
Definition
cal/g °C, J/g °C.
Term
The specific heat of water is ___________.
Definition
1.000 cal/g. °C.
Term
The correct scientific notation for 147.8 x 10-3 is
Definition
1.478 x 10-1
Term
If you have 2.00 g of liquid metal mercury (Hg), what volume will it occupy in milli- liters given that the density of mercury is 13.6 g/mL?
Definition
0.147 mL
Term
d=
Definition

m


v

Term
m=
Definition
v • d
Term
Heat=
Definition
Specific heat of substance X Mass of substance X Change in temperature
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