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module 1 > chemistry > Flashcards

chemistry Flashcards

1
Q

Anything that occupies space and has mass

A

Matter

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2
Q

What are the weights of measurement of:

length, mass, time, temperature?

A

Length: meter (m)
Mass: kilograms (kg)
Time: seconds (sec)
Temperature: Kelvin (K)

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3
Q

What are the classifications of Matter and defined each?

A

Element - simplest form of matter, 1 kind of material or atom
Compound - substances composed of two or more elements united chemically in definite proportion
Mixture - composed of 2 or more substances that are not chemically combined

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4
Q

What are the different types of Metals and define each and the mnemonics of metalloids

A

Metals
Non metals
Metalloids

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5
Q

What is the meaning of chemical bond?

A

Chemical bond is the forces that holds atoms together to make compounds or molecules

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6
Q

What are the two types of compounds and define each?

A

ionic bond - transfer of electrons

covalent bond - sharing of electrons

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7
Q

Ionic Bonding Mnemonics? and explain the ionic bonding?

A

MetLoPos

NonMetGaNe

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8
Q

What is the difference between Nonpolar covalent bond and polar covalent bond?

A

nonpolar - shared equally

polar - not share equally because of unequal attraction

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9
Q

What is the difference between inorganic compound and organic compound?

A

inorganic - contains few carbons and other elements

organics - contains carbon atoms in the molecules

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10
Q

What are the properties of colloids?

A

Brownian movement - zigzag movement of colloidal properties due to perfectly elastic collision
Tyndall effect - Light Scattering
Electrically charged - used in gel electrophoresis for absorption

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11
Q

What is the classification of matter and the difference between each?

A 
solids
liquids
gas
plasma
liquid crystals
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12
Q

110

A

Darmstadtium

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13
Q

111

A

Roentgenium

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14
Q

112

A

Copernicium

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15
Q

114

A

Flerovium

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16
Q

116

A

Livermorium

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17
Q

What is the meaning of Chemical Reaction?

A

Chemical reaction occurs when the outermost or valence electrons around the nucleus interacts
- entails the removal of valence electrons, adding electrons to a partly filled valence shell, sharing a pair of electrons between two atoms

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18
Q

Reactants

A

substance that enter into a chemical reactions

19
Q

Products

A

substance that are formed after a chemical reaction

20
Q

Law of Conservation of Mass

A

a law that states that chemical equation has to be consistent. The same number of atoms of each element must appear on both sides of the equation. FUNDAMENTAL LAW OF BALANCING CHEMICAL EQUATION

21
Q

Involves the reaction of two or more substances that react to form one compound

A

Direct Union/Synthesis/Composition

22
Q

Once compound decomposes to form two or more substances or simpler substances

A

Decomposition/Analysis

23
Q

Reaction in which one element replaces similar element in a compound

A

Single Relplacement Reaction

24
Q

Reaction in which 2 compounds exchange partners

A

Double displacement

25
Q

atoms with same number of protons

A

isotopes

26
Q

atoms with same number of neutrons

A

isotones

27
Q

atoms with same number of mass numbers

A

isobars

28
Q

atomic number

A

number of protons

and number of electrons

29
Q

mass number

A

number of protons plus number of neutrons

30
Q

protons

A

atomic number

31
Q

electrons

A

atomic numbers

32
Q

neutrons

A

mass number - atomic number

33
Q

electrons

A

protons - charge

34
Q

matter is made up of small indivisible particles

A

democriyus

35
Q

billiard ball model which is disapproved

A

john dalton

36
Q

discovered electron using CRT; raisin bread model / pudding model

A

jj thompson

37
Q

discovered proton; gold film experiement: atom is mostly an empty space

A

ernest rutherford

38
Q

planetary model

A

neil bohr

39
Q

quantum mechanim model

A

erwin schrodinger

40
Q

discovered neutron

A

james Chadwick

41
Q

atomic weight

A

weighted average of the mass numbers of the isotopes of the elements

42
Q

define allotrope

A

the existence of a chemical element in two or more forms; atoms of different elements can link together in different ways to form substances with different properties

43
Q

allotropes of carbon

A

diamond and graphite

44
Q

allotropes of oxygen

A

[O] - nascent
o2 - molecular
o3 - ozone

module 1 (3 decks)

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