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Questions and Answers
What is the charge of group 1 element?
What is the charge of group 1 element?
- 0
- +2
- +3
- +1 (correct)
What is the charge of group 2 element?
What is the charge of group 2 element?
- +1
- -1
- +3
- +2 (correct)
What is the charge of group 3 element?
What is the charge of group 3 element?
- +3 (correct)
- +2
- +1
- -3
What is the charge of group 4 element?
What is the charge of group 4 element?
What is the charge of group 5 element?
What is the charge of group 5 element?
What is the charge of group 6 element?
What is the charge of group 6 element?
What is the charge of group 7 element?
What is the charge of group 7 element?
What is the charge of group 8 element?
What is the charge of group 8 element?
What is the symbol for a zinc ion?
What is the symbol for a zinc ion?
What is the symbol for a silver ion?
What is the symbol for a silver ion?
What is the symbol for a hydrogen ion?
What is the symbol for a hydrogen ion?
What is the symbol for ammonium ion?
What is the symbol for ammonium ion?
What is the symbol for a nitrate ion?
What is the symbol for a nitrate ion?
What is the symbol for a hydroxide ion?
What is the symbol for a hydroxide ion?
What is the symbol for a carbonate ion?
What is the symbol for a carbonate ion?
What is the symbol for a sulphate ion?
What is the symbol for a sulphate ion?
What charge must all ionic formulas add up to?
What charge must all ionic formulas add up to?
What is the chemical formula for hydrochloric acid?
What is the chemical formula for hydrochloric acid?
What is the chemical formula for nitric acid?
What is the chemical formula for nitric acid?
What is the chemical formula for sulfuric acid?
What is the chemical formula for sulfuric acid?
What is the chemical formula for phosphoric acid?
What is the chemical formula for phosphoric acid?
What is the chemical formula for magnesium chloride?
What is the chemical formula for magnesium chloride?
What is the chemical formula for calcium sulfide?
What is the chemical formula for calcium sulfide?
What is the chemical formula for aluminium nitrate?
What is the chemical formula for aluminium nitrate?
What is the chemical formula for ammonium sulfate?
What is the chemical formula for ammonium sulfate?
What is the symbol for a gas?
What is the symbol for a gas?
What is the symbol for a solid?
What is the symbol for a solid?
What is the symbol for a liquid?
What is the symbol for a liquid?
What is the symbol for aqueous solution?
What is the symbol for aqueous solution?
Which substance gives a squeaky pop with a lit splint?
Which substance gives a squeaky pop with a lit splint?
What substance relights a glowing splint?
What substance relights a glowing splint?
What substance turns blue cobalt chloride paper pink?
What substance turns blue cobalt chloride paper pink?
What substance turns orange bromine water colorless?
What substance turns orange bromine water colorless?
What substance boils at exactly 100 degrees and freezes at 0?
What substance boils at exactly 100 degrees and freezes at 0?
How do you test for carbon dioxide?
How do you test for carbon dioxide?
What is the observation for the carbon dioxide limewater test?
What is the observation for the carbon dioxide limewater test?
What are two methods for testing for water?
What are two methods for testing for water?
What is the observation for the cobalt chloride paper test?
What is the observation for the cobalt chloride paper test?
What is the observation for the anhydrous copper sulfate test?
What is the observation for the anhydrous copper sulfate test?
What are the products of a complete combustion of a hydrocarbon?
What are the products of a complete combustion of a hydrocarbon?
What are the products of incomplete combustion of a hydrocarbon (gas products)?
What are the products of incomplete combustion of a hydrocarbon (gas products)?
What are the products of incomplete combustion of a hydrocarbon (solid products)?
What are the products of incomplete combustion of a hydrocarbon (solid products)?
What is the mass of a proton?
What is the mass of a proton?
What is the mass of a neutron?
What is the mass of a neutron?
What is the mass of an electron?
What is the mass of an electron?
What is the charge of a proton?
What is the charge of a proton?
What is the charge of a neutron?
What is the charge of a neutron?
What is the charge of an electron?
What is the charge of an electron?
Where is the proton located?
Where is the proton located?
Where is the neutron located?
Where is the neutron located?
Where is the electron located?
Where is the electron located?
What substance turns anhydrous copper sulfate from white to blue?
What substance turns anhydrous copper sulfate from white to blue?
What is the most abundant gas in the atmosphere?
What is the most abundant gas in the atmosphere?
What is the percentage of nitrogen in the air?
What is the percentage of nitrogen in the air?
What is the percentage of carbon dioxide in air?
What is the percentage of carbon dioxide in air?
What is the percentage of argon in air?
What is the percentage of argon in air?
What is the percentage of oxygen in air?
What is the percentage of oxygen in air?
What method is used to separate gases in the air?
What method is used to separate gases in the air?
Flashcards
Group 1 Element Charge
Group 1 Element Charge
Elements in Group 1 of the periodic table have a +1 charge.
Group 2 Element Charge
Group 2 Element Charge
Elements in Group 2 have a +2 charge.
Group 5 Element Charge
Group 5 Element Charge
Elements in Group 5 have a -3 charge.
Group 6 Element Charge
Group 6 Element Charge
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Group 7 Element Charge
Group 7 Element Charge
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Zn²⁺
Zn²⁺
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Ag⁺
Ag⁺
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OH⁻
OH⁻
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CO₃²⁻
CO₃²⁻
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Ionic Charge Balance
Ionic Charge Balance
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HCl
HCl
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HNO₃
HNO₃
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MgCl₂
MgCl₂
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(g)
(g)
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(s)
(s)
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(l)
(l)
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(aq)
(aq)
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Hydrogen Test
Hydrogen Test
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Oxygen Test
Oxygen Test
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Alkene Test
Alkene Test
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Carbon Dioxide Test
Carbon Dioxide Test
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Cobalt chloride paper with water
Cobalt chloride paper with water
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Complete Combustion Products
Complete Combustion Products
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Incomplete Combustion Products
Incomplete Combustion Products
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Proton Charge
Proton Charge
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Neutron Charge
Neutron Charge
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Electron Charge
Electron Charge
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Nucleus Contents
Nucleus Contents
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Electron Location
Electron Location
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Atmospheric Nitrogen
Atmospheric Nitrogen
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Study Notes
Basic Charges of Elements
- Group 1 elements have a charge of +1.
- Group 2 elements have a charge of +2.
- Group 3 elements have a charge of +3.
- Group 4 elements can have a charge of +4 or -4.
- Group 5 elements have a charge of -3.
- Group 6 elements have a charge of -2.
- Group 7 elements have a charge of -1.
- Group 8 elements have a neutral charge (0).
Ion Symbols
- Zn²⁺ represents a zinc ion.
- Ag⁺ represents a silver ion.
- H⁺ denotes a hydrogen ion.
- NH₄⁺ signifies an ammonium ion.
- NO₃⁻ indicates a nitrate ion.
- OH⁻ denotes a hydroxide ion.
- CO₃²⁻ indicates a carbonate ion.
- SO₄²⁻ represents a sulfate ion.
Ionic Charge Balance
- The total charge in ionic formulas must equal zero.
Chemical Formulas of Acids and Compounds
- HCl is hydrochloric acid.
- HNO₃ represents nitric acid.
- H₂SO₄ is sulfuric acid.
- H₃PO₄ signifies phosphoric acid.
- MgCl₂ indicates magnesium chloride.
- CaS represents calcium sulfide.
- Al(NO₃)₃ is aluminum nitrate.
- (NH₄)₂SO₄ signifies ammonium sulfate.
Physical States Symbols
- (g) indicates gas.
- (s) denotes solid.
- (l) represents liquid.
- (aq) signifies aqueous solution.
Chemical Tests and Observations
- Hydrogen produces a squeaky pop with a lit splint.
- Oxygen relights a glowing splint.
- Water turns blue cobalt chloride paper pink.
- Alkenes decolorize orange bromine water.
- Water boils at 100°C and freezes at 0°C.
- Carbon dioxide can be tested using limewater.
- The limewater test yields a cloudy observation for carbon dioxide.
- Cobalt chloride paper turns from blue to pink when it contacts water.
- Anhydrous copper sulfate changes from white to blue when it comes into contact with water.
Combustion Products
- Complete combustion of hydrocarbons produces carbon dioxide and water.
- Incomplete combustion can produce carbon monoxide and water (gas products).
- Incomplete combustion may also yield carbon and water (solid products).
Atomic Mass and Charge
- A proton has a mass of approximately 1 atomic mass unit (amu).
- A neutron also has a mass of approximately 1 amu.
- An electron has a mass of 1/2000 amu.
- Protons carry a charge of +1.
- Neutrons have no charge (0).
- Electrons carry a charge of -1.
Atomic Structure
- Protons and neutrons are located in the nucleus of an atom.
- Electrons are located in shells surrounding the nucleus.
Atmospheric Composition
- Nitrogen is the most abundant gas in the atmosphere, comprising 78%.
- Carbon dioxide constitutes 0.04% of the atmosphere.
- Argon represents 0.9% of atmospheric gases.
- Oxygen makes up 21% of the atmospheric composition.
Separation of Gases
- Fractional distillation is the method employed to separate gases in the air.
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