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PIA Matter and its transformations

Total questions: 50

Worksheet time: 26mins

Name
Class
Date
1.

What is matter?

a)

anything that has mass

b)

everything

c)

anything that has mass and occupies space

2.

Chemistry is the science that studies the composition, structure, properties and changes of matter.

a)

True

b)

False

3.

Is it an element or a compound?

a)

Element

b)

Compound

c)

not enough information

4.

Mixture can be separated using chemical methods.

a)

True

b)

False

5.

The methods of separation of heterogenous mixtures are:

a)

Decantation and filtration

b)

Evaporation and distillation

c)

Decantation, filtration and centrifugaion

6.

The characteristics of the solid state are:

a)

Has a definite volume

b)

Takes the shape of the container

c)

The interaction between particles is very strong

d)

The movement of particles is moderate

7.

Describe the ability of a substance to combine with or change into one or more other substances.

a)

chemical change

b)

physical change

c)

chemical property

d)

physical property

8.

The color of the cranberry juice is red in color and it is in a liquid state. The following characteristics are physical properties, chemical properties, physical change or chemical change?

a)

Physical change

b)

chemical change

c)

chemical property

d)

physical property

9.

Which of these is another change of state of matter?

a)

BEC

b)

malleability

c)

flammability

d)

melting point

10.

What type of change, physical pr chemical, takes place when the food is digested?

a)

physical change

b)

chemical change

11.

Change of state from gas to solid:

a)

sublimation

b)

deposition

c)

condensation

d)

evaporation

12.

The following graph is a heating curve for chloroform, a solvent for fats, oils, and waxes:

What is the approximate boiling point of chloroform?

a)

A

b)

E

c)

B

d)

D

e)

C

13.

Choose the option that is not a quantum number

a)

Principal quantum

b)

Orbital diagram

c)

Magnetic quantum

d)

Spin quantum

e)

Angular momentum

14.

Electron configuration notation

a)

Designates the principal energy level and energy sublevel

b)

Electrons in orbitals are represented by arrows in boxes

c)

Indicates the relative size and energy of atomic orbitals

d)

Specifies the orientation in space of an orbital

15.

Orbital diagram

a)

Designates the principal energy level and energy sublevel

b)

Electrons in orbitals are represented by arrows in boxes

c)

Indicates the relative size and energy of atomic orbitals

d)

Specifies the orientation in space of an orbital

16.

What is the order of the energy sublevels?

a)

f, s, p, d

b)

d, f, s, p

c)

p, d, f, s

d)

s, p, d, f

17.

Choose the option that is not true

a)

There are 4 blocks in the periodic table

b)

The energy of an element's valence electrons indicates the period on the periodic table

c)

The periodic table has 8 periods

d)

Atoms in the same group have the same number of valence electrons.

18.

The electron configuration is the arrangement of electrons in an atom

a)

True

b)

False

19.

Pure substance that cannot be broken down into simpler substances

a)

Atom

b)

Element

c)

Atomic number

20.

What is the number of protons in an atom?

a)

Atomic number

b)

Mass number

21.

What is the average of the masses of all the naturally occurring isotopes of an element?

a)

Atomic number

b)

Mass number

c)

Atomic mass

22.

Is the atom the smallest particle in an element?

a)

True

b)

False

23.

Total number of protons and neutrons in the nucleus.

a)

Subatomic particles

b)

Isotopes

c)

Mass number

24.

What are atoms with the same number of protons but different numbers of neutrons?

a)

Isotopes

b)

Chemical symbols

c)

Electrons

25.

What is a compound?

a)

Fe

b)

substance formed by the combination of two or more atoms of the same element

c)

substance formed by the combination of two or more atoms of different elements.

26.

What does the octet rule states

a)

All elements are metals

b)

All elements should have 8 valance electrons

c)

The octet rule states that atoms gain, lose, or share electrons to acquire a full set of eight valence electrons.

27.

Which of the following is an inorganic compound?

a)

Salt

b)

Chemical function

c)

Sugar

d)

Democritus

e)

Gold

28.

Which of the following is not an inorganic compound

a)

Chemical function

b)

Chemical mixture

c)

Kinds of bond

d)

Number of elements

29.

What are the 2 classification of kinds of bond?

a)

ionic

b)

acid

c)

covalent

d)

bases

e)

salts

30.

What of the following are chemical functions?

a)

Acids

b)

Bases

c)

Salts

d)

Ternary

e)

Oxides

31.

Force that holds two atoms together in a compound and makes them to work as a unit.

a)

Kinetic energy

b)

Bonding energy

c)

Chemical bond

d)

Chemical energy

32.

The bonding energy is the force required to break a chemical bond.

a)

True

b)

False

33.

Kind of chemical bond in which is formed by the reaction of a metal and nonmetal.

a)

Non polar covalent bond

b)

Covalent bond

c)

Polar covalent bond

d)

Ionic bond

34.

They lose valence electrons in order to attain a noble gas configuration, forming cations.

a)

Metals

b)

Nonmetals

c)

Metalloids

35.

What is the bond created by the sharing of valence electrons of two nonmetal atoms? Real molecules are also formed.

a)

Ionic bond

b)

Compounds

c)

Covalent bond

d)

Metallic bond

36.

Is the attraction of a metallic cation for the delocalized electrons.

a)

Ionic bond

b)

Metallic bond

c)

Electronegativity

37.

What is the name of the arbitrary units of electronegativity?

a)

Newtons

b)

Paulings

c)

Joules

38.

What is an element?

(a)  

39.

What is an atom?

(a)  

40.

Atoms are electrically neutral

a)

True

b)

False

41.

Atoms are composed of:

a)

Protons

b)

Neutrons

c)

Electrons

d)

All of the above

42.

88 of 118 elements are found in laboratories, thus the remaining are found in nature

a)

True

b)

False

43.

Select the element that isn't in a gaseous state

a)

Mercury

b)

Hydrogen

c)

Chlorine

d)

Fluorine

44.

Chemical symbols are always composed of two letters, a capital one and a lowercase one

a)

True

b)

False

45.

What is the mass number of Sodium?

a)

22

b)

23

c)

24

d)

25

46.

What is the atomic mass of Helium?

a)

4

b)

5

c)

6

d)

7

47.

It is a characteristic of Non metals:

a)

Is ductile

b)

Is malleable

c)

Good conductor of heat

d)

Not shiny

48.

All are characteristics of metals except:

a)

Shiny

b)

Generally gases or brittle dull-looking solids

c)

Can be mixed to form alloy

d)

Good conductor of heat

49.

Chemical properties of metalloids tend to be non-metallic

a)

False

b)

True

50.

All these elements that form positive ions by losing electrons during chemical reactions except:

a)

Chromium

b)

Cadmium

c)

Hydrogen

d)

Bismuth

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