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Flashcards in Chemistry Deck (40)
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1

ion

an atom that has an unequal amount of protons and electrons

2

cation

positively charged ion (METALS)

3

anion

negatively charged ions (NON-METALS)

4

multivalent

some ions have two possible valances

write correct valance as roman numeral!

5

naming non-metal ions

first syllable + ide
(sulphur = sulfide)

6

ionic compound

when a metal gives electrons to a non-metal, they bond through electrostatic attraction. This forms an IONIC COMPOUND.
(sodium (Na) + chloride (Cl) = NaCl

7

binary compounds

compounds with uneven ionic ratios
(CaCl2)

8

polyatomic ion

a group of atoms bonded together that acts as a single ion

9

Nick the Camel rules

first letter = name of ion
consonants = oxygen
vowels = valance
ate = all ions end with ate

10

Nitrate

NO3 (-)

11

Carbonate

CO3 (2-)

12

Chlorate

ClO3 (-)

13

Sulphate

SO4 (2-)

14

Phosphate

PO4 (3-)

15

Bicarbonate

HCO3 (-)

16

Hydroxide

OH (-)

17

Ammonium

NH4 (+)

18

covalent bond

when two non-metal atoms join together to share electrons in order to reach full valance

19

naming molecular compounds

the elements are given prefixes corresponding with their subscripts (number of atoms). The second element is given the suffix IDE

20

the diatomic gasses (HOFBRINCL)

H ydrogen
O xygen
F lourine
Br omine
I odine
N itrogen
Cl orine

21

Ammonia (base)

NH3

22

Methane

CH4

23

Water

H2O

24

synthesis

2 or more reactants combine to form 1 product
(Mg + O2 = MgO2)

25

decomposition

1 reactant breaks down into 2 or more products
(H2O = H2 + O2)

26

single displacement

a single element replaces another in a compound
(MgBr2 + Cl2 = MgCl2 + Br2)

27

double displacement

part of 2 compounds switch places
(NaOH + FeCl3 = Fe(OH)3 + NaCl)

28

acid

if a substance can add an H atom to water
(pH lower than <7)

29

binary acid

hydrogen bonded to a single element
(hydrochloric acid - HCl (aq))

30

oxyacid

hydrogen bonded to a polyatomic ion
(nitic acid - HNO3 (aq))