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WorksheetsCONSUMER CHEMISTRY
Total questions: 60
Worksheet time: 2hrs 0mins
The following are example of Alkali earth metal, except;
This elements is present in shells and bones.
Magnesium
Calcium
Potassium
Iron
Which of the following example has a krypton element?
Flashlight
Advertising signs
Fireworks
Lasers
Which of the following is not belong in family 1?
Which of the following elements found in Family 1 Period 2?
Beryllium
Sodium
Hydrogen
Lithium
Each horizontal row of the Periodic table is called (a)
Which of the following does not describe the alkali earth metal?
Alkali metal has high density, metallic luster and good in electrical and thermal conductivity.
They form compounds by losing, or in the case of beryllium, sharing two electrons per atom
alkali metal are heavy metals because their atoms are relatively small and their large numbers of protons and neutrons give them relatively large masses.
The alkali metals also react readily with many other types of chemicals, including acids, sulfur, phosphorus, the halogens (Group VIIA), and, with the exception of beryllium, hydrogen.
The vertical columns are called groups or families that has_________.
different properties due to their atomic number
similar physical properties and they have the same number of electron
similar chemical properties due to their similarities in the number of electrons in their outer shells.
similar physical properties due to their similarities in the number of electrons in their outer shells.
Periodic table consists of horizontal rows are called _______
period or series, and the elements belonging to same periods have different properties.
period or series, and the elements belonging to same periods have similar properties.
period or series have a unique properties
What happen to the metallic properties of an elements as you go from left to right?
Increasing
The same
Decreasing
Name the compound: N2O5.
dinitrogen pentaoxide
binitrogen pentaoxide
nitrogen oxide
pentanitrogen dioxide
Name the compound: (NH4)2S
ammonium sulfide
nitrogen tetrahydrogen sulfide
diammounium sulfate
ammonium sulfate
Name the compound: MgCl2
magnesium chloride
magnesium dichloride
monomagnesium chloride
manganese chloride
Name the compound: Cu(NO3)2
copper nitrate
copper(II) nitrate
copper(II) dinitrate
copper dinitrogen hepaoxide
Name the compound: SO3
sulfur trioxide
sulfite ion
sulfur oxide
sodium trioxide
Name the compound: CF4
carbon tetrafluoride
monocarbon tetrafluoride
carbon fluoride
chlorine tetrafluoride
Name the compound: P4O8
tetraphosphorus octoxide
phosphorus oxide
tetrapotassium octoxide
potassium oxide
Name the compound: SF6
sulfur heptafluoride
sulfur hexafluoride
monosulfur hexafluoride
monosulfur heptafluoride
Name the compound: AgNO3
silver mononitrogen trioxide
silver nitrate
silver nitride
monosilver mononitrogen trioxide
Name the compound: Zn3P2
zinc phosphide
trizinc diphosphide
zinc phosphate
zinc phosphite
Write the formula: potassium hydroxide
KOH
POH
KH
KO
Write the formula: tetraarsenic decoxide
As4O10
As10O4
As6O9
AsO
Write the formula: iodine heptafluoride
IF7
I2F14
IHF7
IF6
Write the formula: nitrogen trichloride
NCl3
N1Cl3
N1Cl5
Cl3N
Write the formula: carbon monoxide
CO
CO2
OC
C2O4
Write the formula: tin(II) phosphite
Sn3(PO3)2
Sn3PO8
Sn2PO4
Sn3(PO4)2
Lithium nitride
Li3N
LiN
Li3(NO3)2
LiNO3
Write the formula: lead(IV) sulfite
Pb2(SO3)4
Pb(SO3)2
Pb2(SO4)4
Pb(SO4)2
Write the formula: silver chlorate
AgClO3
AgCl
AgCLO3
AgCl3
Write the formula: beryllium oxide
BO
BeO
BeO2
BO2
What is ionic bonding?
Bonding that is the result of two elements sharing electrons
Bonding involving only one atom
Bonding that is the result of an exchange of electrons between a metal and a nonmetal
Bonding between two metals
What is Covalent Bonding?
Bonding that is the result of two nonmetals sharing electrons
Bonding between two metals
Bonding that is the result of a nonmetal and a metal exchanging electrons
Bonding between more than two elements
Which particle is responsible for bonding?
Protons
Electrons
Neutrons
Nucleus
Which of the following is true about Ionic Bonds? (select ALL TRUE options)
High melting point
Low melting point
Can dissolve in water
Cannot dissolve in water
Can conduct electricity
Which of the following is true about Covalent (non-polar) bonds? (select ALL true options)
High melting point
Low melting point
Can dissolve in water
Cannot dissolve in water
Can conduct electricity
The Atomic number is known as the _______
Number of electrons in an atom
Number of Protons in an atom
Number of neutrons in an atom
Number of Protons and electrons in an atom
What charge do protons have?
Positive
Negative
Neutral
What is Atomic Mass Number ?
Number of Protons
Number of Neutrons
Number of Protons and Neutrons
Number of Protons and Electrons
The number of electrons in an atom is equal to the...
Atomic number
Protons
Atomic Mass
Neutrons
The formula used to calculate the number of neutrons is:
Mass Number - Atomic Number
Protons + Electrons
Atomic Number - Mass Number
Protons x2
How many periods are on the periodic table?
5
6
7
8
Elements in the same group have : (2 correct answers)
Similar chemical properties
Similar names
Same number of outer (valence) electrons)
The same number of protons
Do the diagrams have the same molecular formula?
Yes
No
Do the diagrams have the same empirical formula?
Yes
No
If black ball represents carbon (C) atom and white balls represent hydrogen (H) atoms. What is the molecular formula of the diagram shown?
CH
CH4
C4H
C4H4
If black ball represents carbon (C) atom and white balls represent hydrogen (H) atoms. What is the molecular formula of the diagram shown?
CH
CH4
C2H4
C4H4
Do the diagrams have the same molecular formula?
Yes
No
Do the diagrams have the same empirical formula?
Yes
No
The molecular and empirical formula of a compound are __________ the same.
always
sometimes
never
one and
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. What is the empirical formula of this compound?
C3H3Cl
CH6Cl3
CH3Cl3
CHCl3
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. What is its molar mass in g/mol?
124.42
121.39
119.37
74.51
Chloroform, a toxic substance that may cause severe liver, kidney, and heart damage, has the percent composition by mass of this compound is 10.06% carbon, 0.84% hydrogen, and 89.09% chlorine. If a compound which shares the same empirical formula as chloroform is known to have a molar mass of 223.53g/mol, what is the compound’s mole ratio with chloroform?
2
3
4
5
Which one is the empirical formula?
C4H6
CH
CH3
C2H3
C4H6
