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Unit B Chapter 1/2 Quiz Review Flashcards | StudBud
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Unit B Chapter 1/2 Quiz Review
Unit B Chapter 1/2 Quiz Review
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Matter and Chemical Change Chapter 1/2 Quiz
Flashcards
26 cards
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Practice quiz
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Questions
26
Answers
1
What type of change is chopping wood?
Chemical change
Physical change
2
Fill in the blanks. In this picture, metals are_____, metalloids are _____, non-metals are ____
purple, pink, green
purple, green, pink
green, purple, pink
green, pink, purple
3
Which WHMIS symbol is this?
Biohazardous infectious material
Poisonous & infectious: immediate and serious toxic effects
Poisonous and infectious causing other toxic effects
Corrosive material
4
What type of change is rotting food?
Chemical change
Physical change
5
What is a compound?
A combination of pure substances
2 or more elements combine chemically in specific proportion
The different substances that make it up are invisible
Material that can't be broken down any further
6
What statement is true about groups,families and periods in the periodic table?
Horizontal rows are groups, vertical columns are periods
Vertical columns form a group or family. They are the same.
Horizontal rows are groups, vertical columns are families
Horizontal rows are families, vertical columns are groups
7
Which statement is true about mass number?
It is the sum of electrons and neutrons in an atom.
It is the difference between the protons and neutrons
It is the sum of the protons and electrons in an atom.
It is the sum of the protons and neutrons in an atom
8
What was Rutherford's major contribution to atomic theory?
He discovered the nucleus by shooting particles through foil
He discovered electrons using cathode rays
He came up with the "raisin bun model"
He developed a naming system for chemicals
9
Which of the following describes the noble gases?
Group 2: react when exposed to air or water
Group 17: the most reactive non-metals
Group 18: the most stable and unreactive elements
Group 1: the most reactive of the metals
10
What is an element?
Different substances that make up the mixture aren't visible
Different substances that make up the mixture are visible
It cannot be broken down into a simpler substance
When two or more elements combine chemically in fixed ratios
11
Which of the following describes alkali-metals?
The most reactive non-metals
Most reactive of all metals, react when exposed to air/water
the most stable and unreactive elements
2nd most reactive metals, most reactive is alkali-earth
12
What is the atomic number?
It is the number of protons in one atom of an element.
It is the number of neutrons in one atom of an element.
It is the number of protons and neutrons in one atom.
It tells us how many atoms are in an element.
13
Which WHMIS symbol is this?
Corrosive material
Biohazardous infectious material
Dangerously reactive material
Poisonous & infectious: immediate and serious toxic effects
14
Which of the following is
not
an example of a chemical property?
reaction with acids, ability to burn
reaction with acids/water/heat
melting point, ability to be dissolved
ability to burn, behavior in air
15
Which answer fully describes the properties of metals?
Shiny, malleable, ductile, conduct electricity
Shiny, ductile, do not conduct electricity
Shiny, ductile, conduct electricity
Shiny, brittle, malleable
16
What is one difference between the properties of metals and non-metals?
Metals are extremely reactive, non-metals are stable
Metals are dull and brittle, non-metals are not shiny
Metals conduct electricity, non-metals do not conduct it
Non-metals conduct electricity, metals do not conduct it
17
Which of the following are
not
both indicators of a chemical change?
change in color, change in odour
Formation of a solid or gas, change in state
change in color, formation of a solid or gas
release or absorption of heat energy, change in odour
18
Which of the following describes halogens?
Group 2: React when exposed to air and water
Group 17: the most reactive non metals. Example: chlorine
Group 1: the most reactive of all metals
Group 18: the most stable and unreactive elements
19
What was Thomson's major contribution to atomic theory?
A model of the atom that looked like a mini solar system
He developed the billiard ball model of the atom
He developed the periodic table
The 'raisin bun model' of the atom & discovered the electron
20
Which of the following is evidence of a chemical change?
Formation of a gas
A large amount of energy is added to a gas creating plasma
Liquid water changing into a gas
Koolaid powder is mixed in water so a color change occurs
21
Which of the following are physical properties of matter?
ductility, malleability, ability to burn
ductility, malleability, conductivity
ductility, malleability, behavior in air
reaction to heat, ductility, malleability
22
Which statement about chemical change and physical change is true?
chemical change- composition changes, in physical it doesnt
physical change-composition changes, in chemical it doesn't
A physical change involves the formation of a solid or a gas
in both physical & chemical changes the composition changes
23
Who organized the elements into patterns based on properties, thus creating the periodic table?
Borat
Mendeleev
Deomocritus
Laviosier
24
What type of change is melting ice?
Chemical change
Physical change
25
What type of change is rust on a bicycle?
Physical change
Chemical change
26
What is a pure substance?
The substances that make it up are not visible
A material that can't be broken down into simpler substance
Made up of only one kind of matter. Example: Mercury, sugar
When 2 or more elements combine chemically
