Introductory Chemistry For Today
8th Edition
ISBN: 9781285644561
Author: Seager
Publisher: Cengage
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10. The amount of spaces between particles of matter can be measured.
How do we measure the space occupied by an object?
C. Getting the density
D. Getting through its volume
A. Area
B. Mass
Measuring the mass and volume of a piece of chalk is a way of investigating its _____.
A.Chemical and intensive properties
B.Chemical and extensive properties
C.Physical and intensive properties
D. Physical and extensive properties
Water, table salt, and sugar are examples of _______.
A.Mixtures c. Elements
B. Compounds d. Solutions
Which is an example of a compound?
A.Rust c. Carbonated Drinks
B. Pure Gold d. Salt Solution
Which of the following statements best describe isotopes?
A.Same number of neutrons, different number of electrons
B.Same number of protons, different number of electrons
C.Same number of protons, different number of neutrons
D.Same number of neutrons, different number of protons
What is the charge of an atom's nucleus?
A.positive c. negative
B.no charge d. can be positive or negative
Which of the following subatomic particles has the smallest mass?
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B.neutron d. electron
What is the mass number of an atom which has 11 protons, 11…
b. Complete the conversion of 0.000051 g to µg
Incorrect. Your answer is not calculated correctly.
3. a. What conversion factor(s) can you use to convert ng to mg?
1000 mg
1x 10 ng
a.
b.
C.
d.
1g
1g
1x10⁰ ng
1 mg
1x109 ng
1x 10 ng
1 mg
and
and
18
1000 mg
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