TCS Chemistry Review Chapters 1 & 2

Question 1

Phosphorus, P4 is classified as what classification of matter?

Accepted Answer

polyatomic element

Question 2

Which of the following has the greatest amount of thermal energy?

Accepted Answer

1 L of water at 98 oC

Question 3

How many atoms of each are present in 2Al2(SO4)3?

Accepted Answer

4 Al, 6 S, 24 O

Question 4

How many atoms of oxygen are in 5 molecules of penicillin G (C17H20O4S)?

Accepted Answer

20

Question 5

87 oF. Convert this to oC. You may use a calculator.

Accepted Answer

31 oC

Question 6

When water vapor forms dew on the grass, a phase change called _________________ has occurred.

Accepted Answer

condensation

Question 7

True or False? The scientific process, when used properly, can lead us to absolute truth.

Accepted Answer

False

Question 8

True or False? Sublimation is an example of a substance that is undergoing a chemical change.

Accepted Answer

False

Question 9

What is the main reason chemistry developed over time?

Accepted Answer

to meet people's needs

Question 10

What classificiation of matter is iron, Fe?

Accepted Answer

monatomic element

Question 11

The freezing point of nitrogen is -210 oC. Convert to kelvins. (Calculator allowed)

Accepted Answer

63 K

Question 12

Chemistry is the study of __________ and the changes it undergoes.

Accepted Answer

matter

Question 13

Which is the following is not a type of qualitative data?

Accepted Answer

mass

Question 14

Dry ice has a temperature of 196 K. What is this temperature on the Celsius scale?

Accepted Answer

-77 oC

Question 15

The Egyptians understood and used chemicals as medications. What were these pharmicists called?

Accepted Answer

apothecaries

Question 16

Elements have been named for which of the following?

Accepted Answer

all of these

Question 17

When we explore nature to simply learn more about the world, we are engaging in _______ science

Accepted Answer

pure

Question 18

Which one of the following statements about theories is incorrect?

Accepted Answer

They should be accepted as established truth.

Question 19

Data and observations gathered through experimentation are said to be ______________.

Accepted Answer

empirical

Question 20

True or False? The joule is the standard metric (SI) unit of measurement for energy.

Accepted Answer

True

Question 21

A charged atom is called what?

Accepted Answer

an ion

Question 22

Which of the following is the most important contribution alchemists made to modern chemistry?

Accepted Answer

experimental approach

Question 23

Convert 5776 K to degrees Fahrenheit. (Calculator allowed)

Accepted Answer

9937 oF

Question 24

All scientists approach their work with certain ____________, ideas they assume to be true.

Accepted Answer

presuppositions

Question 25

Which term describes the ability of a material to be drawn into wires?

Accepted Answer

ductility

Question 26

In the chemical formula 10Al(C2H3O2)3, the numeral 10 is a _______________.

Accepted Answer

coefficient

Question 27

True or False? Everything in the material universe is composed of chemicals.

Accepted Answer

True

Question 28

Which of the following is not a characteristic of solids?

Accepted Answer

ease of compressibility

Question 29

The energy in a system spreads out as entropy _______________.

Accepted Answer

increases

Question 30

Which of the following activities can be a fulfillment of the Creation Mandate?

Accepted Answer

all of these

Question 31

What is the goal of science?

Accepted Answer

workable models

Question 32

Who were the first people to propose that matter was made of atoms?

Accepted Answer

Greeks

Question 33

The amount of energy required to raise the temperature of 1 gram of water 1 oC is called what?

Accepted Answer

calorie

Question 34

Who was the first professor of chemistry in the United States?

Accepted Answer

Sir Ronald Ross

Question 35

True or False? The scientific method follows a strict series of steps to reach conclusions.

Accepted Answer

False

Question 36

What is a scientific hypothesis?

Accepted Answer

a suggested explanation for an observation to test

Question 37

Which of the following is not one of the six common forms of energy?

Accepted Answer

laser

Question 38

What classification of matter is a chocolate bar with nuts?

Accepted Answer

heterogeneous mixture

Question 39

This person is a physicist who first formed carbon nanotubes.

Accepted Answer

Sumio Iijima

Question 40

What type of property is this?: explosive

Accepted Answer

chemical property

TCS Chemistry Review Chapters 1 & 2

Questions 40

TCS Chemistry Review Chapters 1 & 2

Questions 40