Which elements are considered metalloids?

Elements that only conduct electricity under certain conditions

What is the purpose of filtration?

To remove an insoluble solid from a liquid or solution.

Which of the following is a characteristic of metals?

Good conductors of heat and electricity

A building block of matter that consists of only one type of atom.

What properties do elements in Group 1A (alkali metals) have in common?

They have one valence electron.

What is a key characteristic of a heterogeneous mixture?

It contains particles that settle out if left undisturbed.

Which of the following is TRUE about compounds?

They are composed of two or more different elements chemically bonded.

How is the atomic mass unit of an element calculated? By...

Multiplying the mass of each isotope natural abundance & adding the product

Which of the following statements is TRUE about solids?

Solids have a fixed shape and volume.

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Unit 1 What does it MATTER?? MYP 5

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This quiz is to review Unit 1 What does it MATTER?? in MYP 5 Chemistry

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Questions 17

Answers

1
Which elements are considered metalloids?
Elements with properties identical to metals
Elements that are highly reactive gases
Elements that only conduct electricity under certain conditions
Elements that are poor conductors of electricity in all forms
2
Which area of chemistry focuses on the composition of matter?
Biochemistry
Physical Chemistry
Analytical Chemistry
Organic Chemistry
3
What is the purpose of filtration?
To separate a soluble solid from a liquid.
To separate gases from a mixture.
To separate two liquids with different boiling points.
To remove an insoluble solid from a liquid or solution.
4
Which group in the periodic table contains the noble gases?
Group 1A
Group 7A
Group 2A
Group 8A
5
Which of the following is a characteristic of metals?
Generally gaseous at room temperature
Poor conductors of heat
Non-ductile and brittle
Good conductors of heat and electricity
6
The lab instrument shown in the image is called a universal stand.
False
True
7
What is a cation?
An atom that gains electrons.
A positively charged ion.
An atom that loses neutrons.
A negatively charged ion.
8
What is an element?
A building block of matter that consists of only one type of atom.
A mixture of two or more different elements.
A substance that consists of two or more atoms.
A substance that can be broken down into simpler substances.
9
What properties do elements in Group 1A (alkali metals) have in common?
They are gaseous at room temperature.
They are non-reactive.
They have one valence electron.
They do not form ions.
10
Which separation technique involves separating liquids based on their boiling points?
Filtration
Distillation
Chromatography
Evaporation
11
What is a key characteristic of a heterogeneous mixture?
It contains particles that settle out if left undisturbed.
It has a uniform composition throughout.
It is also known as a solution.
It is composed of two or more pure substances that cannot be separated.
12
What is the basis for the modern periodic table's arrangement?
Increasing atomic mass
Elemental properties
Increasing atomic number
Decreasing atomic number
13
Which of the following is TRUE about compounds?
They can be separated by physical methods.
Their properties are identical to the elements they contain.
They are composed of two or more different elements chemically bonded.
They consist of only one type of atom.
14
How is the atomic mass unit of an element calculated? By...
Adding the number of protons and electrons
Multiplying the mass of each isotope natural abundance & adding the product
Subtracting the atomic number from the mass number
Averaging the masses of all known isotopes
15
Which of the following statements is TRUE about solids?
Solids have weak forces of attraction between particles.
Solids have a fixed shape and volume.
Solids can flow like liquids.
Solids are compressible.
16
Who is credited with creating the first periodic table?
J.W. Dobereiner
Jonh Dalton
Dmitri Mendeleev
Demoscritus
17
Which of the following elements forms a 1+ cation?
Oxygen (O)
Sulfur (S)
Chlorine (Cl)
Sodium (Na)

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