reagents and common ions Flashcards
1
Q
Hydrochloric acid
A
HCL
2
Q
Nitric acid
A
HNO3
3
Q
Sulfuric acid
A
H2SO4
4
Q
Sodium hydroxide
A
NaOH
5
Q
Potassium hydroxide
A
KOH
6
Q
Ammonia
A
NH3
7
Q
Hydrogen
A
H+
8
Q
Lithium
A
Li+
9
Q
Sodium
A
Na+
10
Q
Potassium
A
K+
11
Q
Silver
A
Ag+
12
Q
Calcium
A
Ca2+
13
Q
Magnesium
A
Mg2+
14
Q
Zinc
A
Zn2+
15
Q
Copper (II)
A
Cu2+
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
Hydroxide
OH-
26
Nitrate
NO3-
27
Carbonate
CO3^2-
28
sulphate
SO4^2-
29
What is an atom?
An atom is the smallest unit of ordinary matter that forms a chemical
30
What is an element?
A pure substance of one type of atom
31
What is a molecule?
An electrically neutral group of two or more atoms chemically bonded
32
What is a compound?
A substance composed of many identical molecules composed of more than one element held together by chemical bonds.
33
What is an isotope?
A form of an element with the same number of protons but a different number of neutrons
34
What is the mass number?
The total number of protons and neutrons in a nucleus
35
What is the atomic number?
The number of protons in the nucleus
36
Why do isotopes have similar chemical properties?
They have the same number of protons and electrons
37
Why do isotopes have different physical properties?
They have different melting , boiling and freezing points. Some are unstable and radioactive.
