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C1, C2, C8.1-8.5 Chemistry Revision > C1 > Flashcards

C1 Flashcards

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1
Q

What is the charge of a proton?

A

+1

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2
Q

True or false? Elements contain more than one type of atom.

A

False

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3
Q

Give the formula for carbon dioxide

A

CO2

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4
Q

Give the formula for Sodium carbonate

A

Na2CO3

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5
Q

Balance the equation Mg+02 = Mg0

A

2Mg+02 = 2MgO

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6
Q

Balance the equation H2SO4 + NaOH = Na2SO4+H2O

A

2NaPH+H2SO4 = Na2SO4+2H2O

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7
Q

What is the difference between a compound and a mixture?

A

Compounds are substances formed by the chemical combination of two or more elements. Mixtures are substances formed by physically mixing two or more substances together.

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8
Q

What is the name of the pattern formed from carrying out paper chromatography?

A

Chromatogram

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9
Q

Which method of separation is useful to separate an insoluble solid from a liquid?

A

Filtration

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10
Q

Give the name of the method to seperate a soluble solid from a liquid.

A

Simple distillation

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11
Q

Which method of distillation would you use to separate liquids with similar boiling points?

A

Fractional distillation

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12
Q

Who discovered that the plum pudding model was wrong?

A

Ernest Rutherford

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13
Q

Who first devised an experiment that proved the existence of the neutron?

A

James Chadwick

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14
Q

What is the electronic structure of sodium?

A

[Ne] 3s1

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15
Q

Why did Medleev leave gaps in his Table of Elements?

A

So he could place elements not known at the time

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16
Q

How are the group number and the number of electrons in the outer shell of an element related?

A

The number of electrons in the outer shell of all the elements in a group is the same as the group number.

17
Q

What kind of ions do metals form?

A

Positively charged ions called cations.

18
Q

Where are non-metals on the periodic table?

A

The right

19
Q

State three trends as you go down Group 1

A

Increase in reactivity, lower melting and boiling points, and higher relative atomic mass.

20
Q

State the products of the reaction of sodium and water

A

A colourless solution is formed, consisting of strongly alkalic sodium hydroxide (caustic soda) and hydrogen gas.

21
Q

How do the boiling points of halogens change as you go down the group from fluorine to astatine?

A

Increase going down group 7

22
Q

What is the charge of the ions that halogens form when they react with metals?

A

The halide ion will have a negative charge and the metal ion will have a positive charge.

23
Q

Predict whether iodine is displaced by chlorine in a solution of potassium iodide.

A

Iodine is displaced

24
Q

What is the trend in boiling point as you go down Group 0?

A

Boiling point increases

C1, C2, C8.1-8.5 Chemistry Revision (1 decks)

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