Chapter 7- Material properties Flashcards

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1
Q

Name some every day materials

A

Plastic, metals, fabrics, wood, pottery, glass, paper, cardboard, brick and concrete

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2
Q

What are physical properties

A

Physical properties of material are the features it possesses that can be investigated by observation or by simple experiments which do not involve chemical reactions

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3
Q

Give an example of a material and its physical properties And an opposite material with its physical properties

A

An electrical conductor, that’s at electricity pass through it
And electrical insulator, does not like electricity pass through it.

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4
Q

What’s the definition of an element

A

A substance that is made up of one type of Atom

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5
Q

Give an example of an element

A

Hydrogen, Carbon, Potassium, sodium

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6
Q

Go into your photos and study the property, metal, nonmetal

A

How well did you know this table

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7
Q

What are the chemical properties of substance

A

Chemical properties of a substance other way it behaves in chemical reactions with other substances

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8
Q

What happens when chemical reactions occur, give an example

A

Substances change into another substance, When iron and sulfur I hate it together they have a chemical reaction which produces compound called iron sulfide

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9
Q

The action between metal and oxygen forms a…

A

Metal oxide

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10
Q

Why is the metal oxide called the base

A

Because it can take part in a chemical reaction with an acid and neutralize it

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11
Q

Metal oxide that can dissolve in water are called…

A

Alkalis

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12
Q

What does the reaction of a nonmetal with oxygen form

A

A nonmetal oxide

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13
Q

Most non-metal oxide dissolves in water to form

A

Acid

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14
Q

What does an element it’s physical and chemical properties

A

The structure of the atom

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15
Q

What was Ernest Rutherford’s theory

A

He needs it an atom did not have a negative charge so they might say something else present cancel out the negative charges

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16
Q

What if it was involved with the discovery of large positively charged particles called a -particles
He use them to investigate atomic structure how did he do this?

A

He set up a thin sheet of gold surrounded by screen that could detect particle-a

17
Q

From his experiment he described as a as having a…

A

Central positively charged nucleus surrounded by a cloud of negatively charged electrons

18
Q

What is the atomic nucleus contain

A

Protons and neutrons

19
Q

What does group one of the periodic table contain

A

The alkali metals

Go and study in your photos where the group 1 and group to and group 7 are placed on the periodic table

20
Q

What does group 2 of the periodic table contain

A

Alkaline earth metals

21
Q

What does group 7 of the periodic table

A

Halogens

22
Q

What does an element have that is unique to each element

A

It’s own particular properties

23
Q

What is a compound

A

A substance that is formed by two or more elements which have joined together as the result of a chemical reaction

24
Q

What are the difference between a compound an element

A

The physical and chemical properties of a compound a different to the physical and chemical properties of the element from which it is formed

25
Q

What is a mixture

A

A mixture is made up of two or more substances the substances can be either elements or compounds or both elements and compounds

26
Q

What happens to the substances in a mixture

A

They keep their own physical and chemical properties

27
Q

Give evidence of an experiment that shows substances in a mixture keep their own physical and chemical properties

A

If you mixed iron with sulfur you could separate it using a magnet

28
Q

What are some ways substances In a mixtures can be separated

A

Filtering, boiling and condensing

29
Q

Describe the process of filtration

A

A solid and a liquid can be created using a filter paper for the mixture into the felt paper and the water will escape through the very small holes in the filter paper and the solid will be held back

30
Q

Describe distillation

A

You can boil off the The liquid and you’re left with the residue