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PIA CHEMISTRY TEAM 5

Total questions: 50

Worksheet time: 38mins

Name
Class
Date
1.

What is the symbol of the following element: Copper

a)

Li

b)

Cu

c)

Sr

d)

Ca

2.

What is the symbol of the following element: Platinum

a)

Pt

b)

Pb

c)

An

d)

Gr

3.

What is the symbol of the following element: Calcium

a)

Pb

b)

Ca

c)

Ba

d)

Kp

4.

What is the symbol of the following element: Manganese

a)

Cu

b)

Fe

c)

J

d)

Mn

5.

What is the symbol of the following element: Iron

a)

Fe

b)

Sr

c)

Ir

d)

I

6.

What is the symbol of the following element: Barium

a)

B

b)

Bm

c)

Ba

7.

What is the symbol of the following element: Lead

a)

Ld

b)

Pb

c)

La

d)

Zn

8.

It is characterized because there are two or more substances or elements that are united, but not chemically combined, and because it is possible to separate them.

a)

Compound

b)

Mixture

c)

Shared substances

9.

It is the type of mixture in which you can´t differentiate its components at first sight.

a)

Heterogeneous mixture

b)

Complex mixture

c)

Homogeneous mixture

10.

An Homogeneous mixture is also known as:

a)

Solution

b)

Dissolution

c)

Solution and dissolution

11.

It is the type of mixture in which you can differentiate its components at first sight.

a)

Heterogeneous mixture

b)

Simple mixture

c)

Homogeneous mixture

12.

This mixture has at least two differentiated phases (ex. solid and solid)

a)

Heterogeneous mixture

b)

Simple mixture

c)

Homogeneous mixture

13.

If Little Rei wants to have a chocomilk, what type of mixture will she be drinking?

a)

A delicious one

b)

An homogeneous one

c)

An heterogeneous one

14.

For a school project, Shinji took a sandwich to class, assuring it is an homogeneous one. What Shinji says is correct?

a)

Correct

b)

Incorrect

15.

Characteristics that can be observed or measured without affecting the identity of a substance.

a)

Chemical Properties

b)

Physical Properties

c)

Chemical Change

d)

Physical Change

16.

The original substance is converted into one or more new substances

a)

Chemical Properties

b)

Physical Properties

c)

Chemical Change

d)

Physical Change

17.

Describe the ability of a substance to change into a new substance

a)

Chemical Properties

b)

Physical Properties

c)

Chemical Change

d)

Physical Change

18.

Its state, size, or appearance will change, but its composition remains the same

a)

Chemical Properties

b)

Physical Properties

c)

Chemical Change

d)

Physical Change

19.

All of this are examples of Chemical changes except:

a)

Shiny, silver metal reacts in air to give a black, grainy coating

b)

Copper is drawn into thin copper wires

c)

A piece of wood burns with a bright flame & produces heat, ashes, carbon dioxide,& water vapor

d)

Heating sugar from a smooth, caramel-colored substance

20.

All of this are examples of Physical Changes except:

a)

Water boils to form water vapor

b)

Sugar dissolves in water to form a solution

c)

Iron combines with oxygen in the presence of water to form rust; chromium does not oxidize

d)

Paper is cut into tiny pieces of confetti

21.

Classiffy the following as physical or chemical change, Water freezes on a pond

a)

Chemical Change

b)

Physical Change

22.

Which of these isn't a metal?

a)

Copper

b)

Sulfur

c)

Aluminum

d)

Gold

23.

Which isn’t a homogeneous mixture?

a)

Blood

b)

Vinegar

c)

Steel

d)

Soil

24.

Which is an element?

a)

Carbon

b)

Air

c)

Wood

d)

Dog

25.

Which one is a liquid at room temperature?

a)

Air

b)

Mercury

c)

Wood

d)

Steel

26.

Formula of sodium chloride

a)

NaCl

b)

S

c)

CCl

d)

NaC

27.

Which one describes a liquid?

a)

Particles are very close to each other

b)

Particles flow like waves

c)

Particles occupy all the available space on the container

28.

Which isn’t a characteristic of metal?

a)

Malleable

b)

Solid at room temperature (except for one)

c)

Not lustrous

d)

Good conductivity

29.

What is a property of ionic compounds?

a)

High melting point

b)

Low melting point

c)

Explosive

d)

There is no correct answer

30.

What is a chemical bond?

a)

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

b)

Bonding energy is the force required to break the chemical bond.

c)

All answers are correct

31.

What is'nt a chemical bond?

a)

Ionic bond

b)

Non polar Covalent bond

c)

Polar covalent bond

d)

Oxidation bond

32.

Name the following: Fe2O3

a)

iron (I) oxide

b)

iron (III) oxide

c)

iron oxide

d)

There is no answer

33.

Name the following: MgO

a)

magnesium oxide

b)

manganese oxide

c)

manganese dioxide

d)

magnesium trioxide

34.

Name the following: CO

a)

tetraphospurus oxide

b)

copper oxide

c)

carbon dioxide

d)

carbon monoxide

35.

Name the following: CO2

a)

carbon tetraoxide

b)

carbon dioxide

c)

lithium trioxide

d)

colacao

36.

Name the following: P4O10

a)

manganese dioxide

b)

tetraphosphorous decoxide

c)

we cant know

37.

What characterizes a non-metal element?

4 lines
38.

What characterizes a metal element?

4 lines
39.

What characterizes a metalloid element?

4 lines
40.

What are the differences between a nonmetal and a metalloid?

4 lines
41.

Hydrogen is considered a metalloid?

a)

Yes

b)

No

42.

In industry, (a)   elements are used to prevent electricity from passing through.

43.

Select the correct physical change: Snow on the ground turns to liquid water

a)

Boiling

b)

Sublimation

c)

Melting

d)

Condensation

44.

Select the correct physical change: Heat is removed from 125 g of liquid water at 0 ºC

a)

Boiling

b)

Condensation

c)

Evaporation

d)

Freezing

45.

Select the correct physical change: Frost (ice) forms on the walls of a freezer unit of a refrigerator

a)

Evaporation

b)

Sublimation

c)

Condensation

d)

Boiling

46.

Select the correct physical change: At 100 ºC, the water in a pan changes to steam

a)

Boiling

b)

Sublimation

c)

Evaporation

d)

Condensation

47.

Select the correct physical change: On a cool morning, the windows in your car fog up

a)

Sublimation

b)

Boiling

c)

Condensation

d)

Freezing

48.

Select the correct physical change: A shallow pond dries up in the summer

a)

Freezing

b)

Evaporation

c)

Boiling

d)

Condensation

49.

Select the correct physical change: Your tea kettle whistles when the water is ready for tea

a)

Freezing

b)

Boiling

c)

Evaporation

d)

Condensation

50.

What elements are in HCl ?

a)

Hydrogene and Chlorine

b)

Helium and Chlorine

c)

Hydrogene Carbon and Lithium

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