Podcast
Questions and Answers
Which type of molecule is represented using the symbol plus a numerical subscript?
Which type of molecule is represented using the symbol plus a numerical subscript?
- Monatomic molecules
- Polyatomic ions
- Diatomic molecules (correct)
- Isotopes
The compound name always includes prefixes like mono-, di-, and tri- to explicitly state the number of each element.
The compound name always includes prefixes like mono-, di-, and tri- to explicitly state the number of each element.
False (B)
Write the chemical formula for dinitrogen tetroxide.
Write the chemical formula for dinitrogen tetroxide.
N2O4
All acids have ______.
All acids have ______.
Match the following chemical formulas with their corresponding compound names:
Match the following chemical formulas with their corresponding compound names:
In the formula $A_2(SO_4)_3$, what is the total number of oxygen atoms?
In the formula $A_2(SO_4)_3$, what is the total number of oxygen atoms?
In a chemical equation, reactants are always on the right side, and products are on the left side.
In a chemical equation, reactants are always on the right side, and products are on the left side.
What are the two products formed as a result of reacting hydrogen with oxygen?
What are the two products formed as a result of reacting hydrogen with oxygen?
The normal ending for an element when an atom is an element is ______.
The normal ending for an element when an atom is an element is ______.
Match the element with the compound it forms when part of a compound:
Match the element with the compound it forms when part of a compound:
What is the ending used to denote an element that is part of a compound and also contains oxygen?
What is the ending used to denote an element that is part of a compound and also contains oxygen?
The oxidation state of carbon in all compounds is always +4.
The oxidation state of carbon in all compounds is always +4.
What is the chemical formula for aluminum phosphate?
What is the chemical formula for aluminum phosphate?
Beryllium carbonate is represented by the chemical formula ______.
Beryllium carbonate is represented by the chemical formula ______.
Match the name with the formula:
Match the name with the formula:
What type of bond is found if there is 'no gap to be bridged'?
What type of bond is found if there is 'no gap to be bridged'?
Ca Cl2 is calcium dichloride.
Ca Cl2 is calcium dichloride.
What does a formula show?
What does a formula show?
Carbon forms ______ bonds.
Carbon forms ______ bonds.
Match the following element types with their typical bonding characteristics:
Match the following element types with their typical bonding characteristics:
Which of these options are correct for naming:
Which of these options are correct for naming:
All noble gasses are just the symbol.
All noble gasses are just the symbol.
What is a diatomic molecule?
What is a diatomic molecule?
Formula show symbol and ______ for how many of each atom.
Formula show symbol and ______ for how many of each atom.
Match the word equation
Match the word equation
Which has OH?
Which has OH?
All acids have OH
All acids have OH
When is water formed?
When is water formed?
Iron + Sulphur => ______ sulphide.
Iron + Sulphur => ______ sulphide.
Match the following equation examples
Match the following equation examples
If the atom is part of compound & oxygen, what ending is used
If the atom is part of compound & oxygen, what ending is used
All molecules are stable on their own.
All molecules are stable on their own.
What does $A$ represent in the formula $A_2(SO_4)_3$?
What does $A$ represent in the formula $A_2(SO_4)_3$?
The total number of atoms in $CO_2$ is ______.
The total number of atoms in $CO_2$ is ______.
Match the following ions with their names
Match the following ions with their names
What is the total number of atoms in sulphuric acid?
What is the total number of atoms in sulphuric acid?
Carbon monoxide is $CO_3$
Carbon monoxide is $CO_3$
What are the elements for each compound if sulphuric acid is mixed with copper oxide?
What are the elements for each compound if sulphuric acid is mixed with copper oxide?
Copper sulphate is $Cu$ ______
Copper sulphate is $Cu$ ______
Match these examples of acid and their formula
Match these examples of acid and their formula
Why is $CaCl_2$ not named calcium dichloride?
Why is $CaCl_2$ not named calcium dichloride?
All acids contain oxygen atoms.
All acids contain oxygen atoms.
What is the general formula that represents the formation of water from hydrogen and oxygen?
What is the general formula that represents the formation of water from hydrogen and oxygen?
When an atom becomes part of a compound and includes oxygen, the normal ending is often ______.
When an atom becomes part of a compound and includes oxygen, the normal ending is often ______.
Match the compound name with its chemical formula:
Match the compound name with its chemical formula:
Flashcards
Monatomic Elements
Monatomic Elements
Elements that exist as single atoms.
Diatomic Molecules
Diatomic Molecules
Molecules composed of two atoms of the same element.
Chemical Formulae
Chemical Formulae
Chemical formulas indicate the number of each atom in a compound.
Compound
Compound
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Prefixes of compound names
Prefixes of compound names
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Chemical equation parts
Chemical equation parts
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Naming Binary Compounds
Naming Binary Compounds
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Naming Compounds with Oxygen
Naming Compounds with Oxygen
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Iron sulphide
Iron sulphide
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Chlorine -> Chloride
Chlorine -> Chloride
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Nitrogen -> nitride
Nitrogen -> nitride
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phosphorus -> phosphonide
phosphorus -> phosphonide
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AlPO4
AlPO4
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Be Co3
Be Co3
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Cu(NO2)2
Cu(NO2)2
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Study Notes
Formulae
- Formulae for all metals, noble gasses and carbon is just the symbol (e.g.: Au).
- Diatomic molecules use the symbol plus 2 (e.g.: O2, H2).
- Use symbol and subscript to show how many of each atom.
- e.g., H2O - 2 hydrogen, 1 oxygen.
- C2H5OH - 2 carbon, 6 hydrogen and 1 oxygen.
- No gaps, atoms are bonded.
- Some compound names include mono-, di-, tri-, tetra-.
- Sulphur dioxide is SO2.
- Dinitrogen tetroxide is N2O4.
- CaCl2 is calcium chloride, NOT calcium dichloride.
Formulae to Learn
- Key chemical formulae include:
- Carbon dioxide: CO2.
- Hydrochloric acid: HCl.
- Sulphur dioxide: SO2.
- Carbon monoxide: CO.
- Sulphuric acid: H2SO4.
- Nitrogen dioxide: NO2.
- Copper Carbonate: CuCO3.
- Water: H2O.
- Nitric acid: HNO3.
- Copper Sulphate: CuSO4.
- Ammonia: NH3.
- Sodium hydroxide: NaOH.
- Calcium hydroxide: Ca(OH)2.
- All acids have Hydrogen.
- Glucose: C6H12O6.
- Potassium hydroxide: KOH.
- Methane: CH4.
- Sodium Chloride: NaCl.
- Calcium carbonate: CaCO3.
- Copper (II) oxide: CuO.
- Hydroxides have OH.
Formula with Brackets
- The general formula is A12(SO4)3.
- A1 = 2.
- S x 3 = 3.
- O x 3 = 12.
Equations
- Reactant(s) produce a Product.
- Water is formed from the reaction of hydrogen with oxygen.
- Hydrogen + Oxygen -> Water.
- Sulphuric acid results from copper oxide and water.
- H2SO4 + CuO -> CuSO4 + H2O
- Use -ide as the normal ending when an atom is an element or part of a compound.
- Use -ate when an atom is part of a compound with oxygen.
- Add the "ate" ending only to the non-metal part.
- Iron + Sulphur creates Iron Sulphide.
- Sodium + Oxygen creates Sodium oxide.
- Silver + Bromine creates Silver bromide.
- Copper + Sulphur + Oxygen creates copper sulphate.
Elements and Compounds
- Element to Compound examples:
- Chlorine -> Chloride, Chlorate (+O2).
- Nitrogen -> Nitride, Nitrate.
- Phosphorus -> Phosphonide, Phosphate.
- Examples:
- Aluminium Phosphate is AlPO4.
- Beryllium Carbonate is BeCO3.
- Copper Nitrate is Cu(NO3)2.
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