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2892MJK902
What are cations?
metal atoms form cations
2892MJK902
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Answers
1
metal atoms form cations
False
True
2
What are cations?
Atoms which lose electrons to gain more ions (neutral charged)
Electrons which lose protons to become negative
IDK HELP
Ions which form atoms lose one or more valence electrons
3
What is the
SCIENTIFIC DEFINITION
of Chemical Change?
Chemical change is when chemicals inside atoms or ions change very small
A type of chemical reaction which only 1 new product is formed
Changes inside a chemical which is visible to us therefore we say "Change"
A change when atleast one or more new products are formed
4
What are anions?
Atoms which from when ions gains more electrons then neutrons
Ions which form when atoms gain to many electrons making not neutral
Ions which form when one ion gains more electrons then protons
Ions which form when's atoms gain one or more valence electrons
5
Prefix: Octa means 8
False
True
6
PURE SUBSTANCES
have constant composition: this means that all the particles that make up the substance are the same
False
True
7
Metals from groups 1 and 2 react with water to form alkaline?
True
False
8
What Group Does Noble gasses fall under?
Group 1
Group 18
All B groups
Goup 18
9
What are compounds?
Substances comprised of only 2 of the same types of ion/atoms
Composed of ONE ATOM
Substances which are composed of 1 or more of the same kind of atoms
Substances which are composed with 2 or different kinds of atoms?
10
Prefix: hexa means 6
False
True
11
What below is true about non metals
Poor/non conductors
brittle
left of staircase line
Shiny
12
What statement is true about atoms
Negatively charged (More electrons then protons)
Idk my brain hurts
Positively charged (More protons then electrons)
the are naturally charged (same amount of protons and electrons)
13
What is the name of Cl(2)O7
DichlorideHeptaOxygen
MonoCholrideHeptaOxide
DiCholride HeptaOxide
ChlorideHeptaOxide
14
What's the SCIENTIFIC DEFINITION of chemistry?
Potion masters, like witches very spooky
The study of chemical compounds and formulas
The study of the periodic table only used for this soul purpose in society
The study of matter and the matters properties and how matter changes
15
Which term associates with "dissolved inside of water"
Dissolviruis
Aquamarine
Aqueous
H2O
16
Which statement is true about Halogen
React with most metals to produce salts (ionic compounds)
Highly reactive, ESPECIALLY WITH WATER
Group 18
Extremely low chemical reactivity
17
How many electrons does the Nitrogen ION have
7
4
3.5
10
18
HomoGenenous Mixtures
only have 1 visible component?
True
False
19
What group number does halogens fall under?
Group 18
Group number 17
All A groups
All B Groups
20
What are some
Physical Changes
of matter?
How hot It gets, smell , what u see
I forget
Cutting,Bending, Changes of state
Stepping on it, Burning, Color
21
Ionic compounds consist of 2 non metals & is a neutral compound
False
True
22
Prefix: Di means 2
False
True
23
HeteroGenenous Mixtures
only have 1 visible component?
True
False
24
Non metals atoms form anions
False
True
25
Molecular Compounds consists of 1 non metals and 1 metal?
False
True
26
Prefix: Hepta means 7
True
False
27
What is the
SCIENTIFIC DEFINITION
of elements
Anything on the periodic table, composed of multiple atoms
The simplest form of matter which exists under normal condition only 1 atom
Ethan
Dawson
28
What are some
Physical properties
of matter?
Electrical Conductivity
Mass
Boiling, melting points
Solubility,color
29
Which statement is true regarding bonds found inside of ionic compounds
Electrons are shared between atoms
Metals lose electrons and non metals gain electrons
Protons are shared between atoms
Metals gain electrons and non metals lose electrons
30
Which below is an example of a metal
francium
fluorine
Neon
krypton
31
We use Roman numerals inside are formula if its a multivalent metal with a nonmetal?
True
False
32
What are some evidence of chemical change?
Change in chemical = Mailability, Density, weight
Change in something
Change in color , smell and energy
Change in Hardness, Bendablity, amount of protons and electrons
33
Prefix: Tri means 3
False
True
34
Which below is a monatomic ion
B
K
C
Na+
35
What are some properties of metal?
Shiny, malleable
Dense,poor conductors
Not shiny, Not very malleable
Good conductors, reactive with acids
36
Prefix: means 10 deca
True
False
37
Prefix: hexa means 8
True
False
38
Which below is multivalent
HPO4
Ni
CN
Cd
39
What Group Does Alkaline Earth metals fall under?
Group 3
Group 2
Group 10
Goup 2
40
Diatomic consists of two atoms
False
True
41
Which below is an example of a common polyatomic ion
V2Cr4
Iron(III)Hafnium
K
CN-
42
What is the
SCIENTIFIC DEFINITION
for Chemical Property
Cooling of chemicals thru freezing which is known as "Icing Defwăre"
Characteristics of Atoms when they go thru chain reactions
Properties of mass which can become inflamed thru heating
Characteristic's of matter that you see when it goes thru Chemical Reaction
43
What below is a molecular compound
MgF(2)
O(3)
Al(2)(CO3)-
BH(2)
44
Monatomic consists of more then one atom?
True
False
45
Prefix: means 9 nona
False
True
46
Prefix: penta means 5
True
False
47
Which below are an example of a diatomic element
Colbalt
Bromine
Iridium
Boron
48
The Diatomic ions is also referred to as "7 UP" to identify then the periodic table
False
True
49
Prefix: Mono means 10
True
False
50
Prefix: Tetra means 6
False
True
51
What Group does alkali metals fall under
Group 15
Group 1
Group 2
All A Groups
52
Which below is an ionic compound
Cl(2)O(7)
PH(3)
CaI(2)
NH(4)
53
What Group Do ALL Representative Elements fall under
Group 2
Group 1
B Groups 3-12
A groups 1,2,13-18
54
What is matter?
Anything that can fill something in and is made up of stuff
Everything that has matter
Anything that has mass and can take up space
Anything thats fat huge idk
