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Chemistry > reagents and common ions > Flashcards

reagents and common ions Flashcards

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1
Q

Hydrochloric acid

A

HCL

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2
Q

Nitric acid

A

HNO3

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3
Q

Sulfuric acid

A

H2SO4

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4
Q

Sodium hydroxide

A

NaOH

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5
Q

Potassium hydroxide

A

KOH

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6
Q

Ammonia

A

NH3

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7
Q

Hydrogen

A

H+

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8
Q

Lithium

A

Li+

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9
Q

Sodium

A

Na+

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10
Q

Potassium

A

K+

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11
Q

Silver

A

Ag+

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12
Q

Calcium

A

Ca2+

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13
Q

Magnesium

A

Mg2+

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14
Q

Zinc

A

Zn2+

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15
Q

Copper (II)

A

Cu2+

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16
Q

Iron (II)

A

Fe2+

17
Q

Iron (III)

A

Fe3+

18
Q

Aluminium

A

Al3+

19
Q

Chloride

A

Cl-

20
Q

Bromide

A

Br-

21
Q

Iodide

A

I-

22
Q

Oxide

A

O2-

23
Q

Sulphide

A

S2-

24
Q

Ammonium

A

NH4+

25
Q

Hydroxide

A

OH-

26
Q

Nitrate

A

NO3-

27
Q

Carbonate

A

CO3^2-

28
Q

sulphate

A

SO4^2-

29
Q

What is an atom?

A

An atom is the smallest unit of ordinary matter that forms a chemical

30
Q

What is an element?

A

A pure substance of one type of atom

31
Q

What is a molecule?

A

An electrically neutral group of two or more atoms chemically bonded

32
Q

What is a compound?

A

A substance composed of many identical molecules composed of more than one element held together by chemical bonds.

33
Q

What is an isotope?

A

A form of an element with the same number of protons but a different number of neutrons

34
Q

What is the mass number?

A

The total number of protons and neutrons in a nucleus

35
Q

What is the atomic number?

A

The number of protons in the nucleus

36
Q

Why do isotopes have similar chemical properties?

A

They have the same number of protons and electrons

37
Q

Why do isotopes have different physical properties?

A

They have different melting , boiling and freezing points. Some are unstable and radioactive.

Chemistry (2 decks)

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