Quiz about 1st Nine Weeks Chemistry Test

Question 1

Which prefix is the smallest?

Accepted Answer

milli

Answer

hecto

Answer

centi

Answer

kilo

Question 2

Matter can not be created or destroyed; it can only be

Accepted Answer

changed in form

Answer

destroyed a little bit

Answer

invisible

Answer

none of the answers are correct

Question 3

The three basic properties of matter are

Accepted Answer

mass, volume and shape

Answer

age, mass and volume

Answer

solids, gases and liquids

Answer

none of the answers are correct

Question 4

According to conservation of mass, if 25 grams of salt are dissolved into 1,000 grams of water, what should be the mass of the saltwater?

Accepted Answer

1,025 grams

Answer

975 grams

Answer

1,000 grams

Answer

2,500 grams

Question 5

_____ takes the shape of their container

Accepted Answer

liquids

Answer

gases

Answer

solids

Answer

plasma

Question 6

The kilogram is the official SI unit of:

Accepted Answer

mass

Answer

volume

Answer

length

Answer

temperature

Question 7

Convert 323 m to km.

Accepted Answer

0.323 km

Answer

3.23 km

Answer

323,000 km

Answer

3,230 km

Question 8

Convert 45 mL to cL.

Accepted Answer

4.5 cL

Answer

450 cL

Answer

0.45 cL

Answer

45,000 cL

Question 9

Convert 8,562 cm to km.

Accepted Answer

0.08562 km

Answer

8,562,000 km

Answer

8.562 km

Answer

85,620 km

Question 10

What is the SI symbol for the prefix deci-?

Accepted Answer

d

Answer

dc

Answer

dg

Answer

dcg

Question 11

What is the difference between being precise and accurate?

Accepted Answer

Precision refers to consistency, accuracy refers to closeness to the true value.

Answer

Precision and accuracy are the same.

Answer

Precision refers to closeness to the true value, accuracy refers to consistency.

Answer

Neither precision nor accuracy matter in measurements.

Question 12

How many significant figures are there in: 0.072050

Accepted Answer

5

Answer

4

Answer

3

Answer

2

Question 13

In a neutral atom, what is the relationship between protons and electrons?

Accepted Answer

The number of protons is equal to the number of electrons.

Answer

The number of protons is greater than the number of electrons.

Answer

The number of protons is less than the number of electrons.

Answer

The relationship varies depending on the element.

Question 14

Which two particles are found in the nucleus of the atom

Accepted Answer

Protons and Neutrons

Answer

Electrons and Oxygen

Answer

Neutrons and Electrons

Answer

Protons and Electrons

Question 15

True or False? Electrons have a negative charge

Accepted Answer

True

Answer

False

Question 16

The Number of ________ determines which element the atom will be.

Accepted Answer

Proton

Answer

Electron

Answer

Nuetron

Answer

Avatar Particles

Question 17

How many Oxygen atoms are in 6AgNO₃?

Accepted Answer

18

Answer

6

Answer

3

Answer

9

Question 18

How many atoms are there TOTAL in:
Al₂(SO₄)₃

Accepted Answer

17

Answer

15

Answer

7

Answer

3

Question 19

How many neutrons are in an atom with an atomic number of 29 and an atomic mass of 65?

Accepted Answer

36

Answer

29

Answer

20

Answer

18

Question 20

How many protons are in this element?

Accepted Answer

12

Answer

24

Answer

196

Answer

100

Question 21

What particles determine the mass number?

Accepted Answer

Protons and neutrons

Answer

Protons and electrons

Answer

Electrons and neutrons

Answer

Protons, neutrons, and electrons

Question 22

A ______ is a number written in front of a chemical formula.

Accepted Answer

Coefficient

Answer

Subscript

Answer

Exponent

Answer

Coordinator

Question 23

How many electrons can the 4th energy level hold?

Accepted Answer

32

Answer

8

Answer

18

Question 24

True or False: the 1st energy level can hold up to 2 electrons.

Accepted Answer

True

Answer

False

Question 25

The Modern Periodic Table of Elements is arranged by

Accepted Answer

atomic number

Answer

atomic mass

Answer

valence electrons

Answer

number of isotopes

Question 26

The periodic table is mostly comprised of what type of element?

Accepted Answer

Metals

Answer

Nonmetals

Answer

Metalloids

Question 27

Group 17 elements are the

Accepted Answer

Halogens

Answer

Boron Group

Answer

Transition Metals

Answer

Noble Gases

Question 28

Elements in the same group or family have _____________.

Accepted Answer

the same number of valence electrons and similar properties

Answer

the same number of valence electrons and different properties.

Answer

different number of valence electrons and similar properties.

Answer

different number of valence electrons and different properties.

Question 29

What is the name of an atom that has gained or lost electrons?

Accepted Answer

Ion

Answer

Isotope

Answer

Metal

Answer

Halogen

Question 30

What are valence electrons?

Accepted Answer

electrons located on the outer energy level

Answer

Any of an atom's electrons

Answer

Electrons located on the first energy level

Answer

Electrons not attached to any atom

Question 31

Why are group 1 elements so reactive?

Accepted Answer

They want to get rid of their only valance electron in order to achieve Nobel Gas electron configuration.

Answer

They only need one more electron to achieve Nobel Gas electron configuration.

Answer

They are non reactive, they have a full outermost shell

Question 32

Atoms of elements that are in the same group have the same number of

Accepted Answer

valence electrons.

Answer

protons.

Answer

neutrons.

Answer

protons and neutrons.

Question 33

Which group is very stable due to the fact that they have a full outermost energy level?

Accepted Answer

noble gases

Answer

alkali metals

Answer

halogens

Answer

alkaline-earth metals

Question 34

The density of Nickel is 2.7 g/ml and a sample of nickel has a volume of 3.0 mL, what is the mass of the sample?

Accepted Answer

8.1 g

Answer

5.7 g

Answer

1.9 g

Answer

0.9 g

Question 35

Ammonia (NH₃) is a

Accepted Answer

pure substance

Answer

mixture

Question 36

A bowl of Lucky Charms with milk is a

Accepted Answer

mixture

Answer

pure substance

Question 37

A pure substance is

Accepted Answer

made up of only one type of particle with a fixed or constant structure.

Answer

the way something is put together or combined.

Answer

two or more different substances not chemically combined.

Answer

a small number that tells the amount of each element in a compound

Question 38

A cup of coffee with cream and sugar is a _________.

Accepted Answer

homogeneous mixture

Answer

element

Answer

heterogeneous mixture

Answer

pure substance

Question 39

The official SI unit of measurement of temperature is the

Accepted Answer

Kelvin

Answer

degree Fahrenheit

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