Question 1

A(n) ________ is a fixed number of atoms held together by chemical bonds in a certain spatial arrangement.

Accepted Answer

A) element 
B) ion 
C) molecule 
D) mixture 
A) element 
B) ion 
C) molecule 
D) mixture

Question 2

In the periodic table,which elements typically have similar properties?

Accepted Answer

A) Those in the same rows 
B) Those related diagonally 
C) Those in the same columns 
D) Those on opposite sides 
A) Those in the same rows 
B) Those related diagonally 
C) Those in the same columns 
D) Those on opposite sides

Question 3

Which is not a pure substance?

Accepted Answer

A) Helium 
B) Copper wire 
C) Air 
D) Sucrose 
A) Helium 
B) Copper wire 
C) Air 
D) Sucrose

Question 4

How many protons,neutrons,and electrons are there in a neutral atom of 19/9 F?

Accepted Answer

A) A 
B) B 
C) C 
D) D 
A) A 
B) B 
C) C 
D) D

Question 5

Which diagram(s) best represent(s) only molecules?

Accepted Answer

A) I only 
B) II only 
C) III only 
D) I and II only 
E) IV only 
A) I only 
B) II only 
C) III only 
D) I and II only 
E) IV only

Question 6

Which of the following is a pure substance?

Accepted Answer

A) Lemonade 
B) Concrete 
C) Gasoline 
D) Silver wire 
A) Lemonade 
B) Concrete 
C) Gasoline 
D) Silver wire

Question 7

A computer chip was weighed and found to have a mass of 23.3040 g.How many significant figures does this number have?

Accepted Answer

A) 4 
B) 5 
C) 6 
D) 7 
A) 4 
B) 5 
C) 6 
D) 7

Question 8

Which square(s) contain(s) only one or more compounds?

Accepted Answer

A) I only 
B) II only 
C) I and IV only 
D) II and III only 
A) I only 
B) II only 
C) I and IV only 
D) II and III only

Question 9

How many bromide ions can combine with one ion of aluminum to form an ionic compound?

Accepted Answer

A) 3 
B) 6 
C) 1 
D) 2 
A) 3 
B) 6 
C) 1 
D) 2

Question 10

Which country is the world's leading producer of rare earth elements?

Accepted Answer

A) USA 
B) China 
C) South Africa 
D) Brazil 
A) USA 
B) China 
C) South Africa 
D) Brazil

Question 11

The numbers 1 through 4 are used to identify four different elements on the periodic table.Which element is expected to have 2+ charge when it forms an ion?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
A) 1 
B) 2 
C) 3 
D) 4

Question 12

What term is defined as the flow of electrons from one location to another?

Accepted Answer

A) Resistance 
B) Transparency 
C) Density 
D) Electricity 
A) Resistance 
B) Transparency 
C) Density 
D) Electricity

Question 13

How many cm are in 0.129 m?

Accepted Answer

A) 1.29 cm 
B) 12.9 cm 
C) 129 cm 
D) 1290 cm 
A) 1.29 cm 
B) 12.9 cm 
C) 129 cm 
D) 1290 cm

Question 14

Which symbols represent only elements that are metals?

Accepted Answer

A) X and Z 
B) X and Q 
C) P and L 
D) X,R,P,and Q 
A) X and Z 
B) X and Q 
C) P and L 
D) X,R,P,and Q

Question 15

Which diagram(s) best represent(s) only diatomic molecules?

Accepted Answer

A) I only 
B) II only 
C) I and II only 
D) II and IV only 
A) I only 
B) II only 
C) I and II only 
D) II and IV only

Question 16

Which is not a mixture?

Accepted Answer

A) A jar filled with rocks and sand 
B) Sea water 
C) A glass of Kool-Aid 
D) Sodium chloride 
A) A jar filled with rocks and sand 
B) Sea water 
C) A glass of Kool-Aid 
D) Sodium chloride

Question 17

Which of the following is the chemical symbol for silver?

Accepted Answer

A) Au 
B) Pb 
C) Ag 
D) Fe 
A) Au 
B) Pb 
C) Ag 
D) Fe

Question 18

The atomic number is the

Accepted Answer

A) same as the mass number of an atom. 
B) number of protons in a nucleus. 
C) number of protons and neutrons in a nucleus. 
D) number of neutrons in a nucleus. 
A) same as the mass number of an atom. 
B) number of protons in a nucleus. 
C) number of protons and neutrons in a nucleus. 
D) number of neutrons in a nucleus.

Question 19

The nucleus of an atom contains

Accepted Answer

A) electrons and protons only. 
B) protons only. 
C) electrons,protons,and neutrons. 
D) protons and neutrons only. 
A) electrons and protons only. 
B) protons only. 
C) electrons,protons,and neutrons. 
D) protons and neutrons only.

Question 20

The quantity 0.0000064 g expressed in scientific notation.

Accepted Answer

A) 6.4 × 106 g 
B) 6.4 × 10¯6 g 
C) 6.4 × 107 g 
D) 6.4 × 10¯7 g 
A) 6.4 × 106 g 
B) 6.4 × 10¯6 g 
C) 6.4 × 107 g 
D) 6.4 × 10¯7 g

A(n) ________ is a fixed number of atoms held together by chemical bonds in a certain spatial arrangement.

In the periodic table,which elements typically have similar properties?

Which is not a pure substance?

How many protons,neutrons,and electrons are there in a neutral atom of 19/9 F?

Which diagram(s) best represent(s) only molecules?

Which of the following is a pure substance?

A computer chip was weighed and found to have a mass of 23.3040 g.How many significant figures does this number have?

Which square(s) contain(s) only one or more compounds?

How many bromide ions can combine with one ion of aluminum to form an ionic compound?

Which country is the world's leading producer of rare earth elements?

The numbers 1 through 4 are used to identify four different elements on the periodic table.Which element is expected to have 2+ charge when it forms an ion?

What term is defined as the flow of electrons from one location to another?

How many cm are in 0.129 m?

Which symbols represent only elements that are metals?

Which diagram(s) best represent(s) only diatomic molecules?

Which is not a mixture?

Which of the following is the chemical symbol for silver?

The atomic number is the

The nucleus of an atom contains

The quantity 0.0000064 g expressed in scientific notation.

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters

Exam 1: Portable Electronics: the Periodic Table in the Palm of Your Hand

A(n) ________ is a fixed number of atoms held together by chemical bonds in a certain spatial arrangement.

In the periodic table,which elements typically have similar properties?

Which is not a pure substance?

How many protons,neutrons,and electrons are there in a neutral atom of 19/9 F?

Which diagram(s) best represent(s) only molecules?

Which of the following is a pure substance?

A computer chip was weighed and found to have a mass of 23.3040 g.How many significant figures does this number have?

Which square(s) contain(s) only one or more compounds?

How many bromide ions can combine with one ion of aluminum to form an ionic compound?

Which country is the world's leading producer of rare earth elements?

The numbers 1 through 4 are used to identify four different elements on the periodic table.Which element is expected to have 2+ charge when it forms an ion?

What term is defined as the flow of electrons from one location to another?

How many cm are in 0.129 m?

Which symbols represent only elements that are metals?

Which diagram(s) best represent(s) only diatomic molecules?

Which is not a mixture?

Which of the following is the chemical symbol for silver?

The atomic number is the

The nucleus of an atom contains

The quantity 0.0000064 g expressed in scientific notation.

The Air We Breathe

Radiation From the Sun

Climate Change

Energy From Combustion

Energy From Alternative Sources

Energy Storage

Water Everywhere: A Most Precious Resource

The World of Polymers and Plastics

Brewing and Chewing

Nutrition

Health Medicine

Genes and Life

Who Killed Drthompson a Forensic Mystery

Filters