Acids, Bases, Salts
Explain why ammonia solution is considered a weak base.
Ammonia solution (NH₃(aq)) is considered a weak base because it only partially ionizes in water.
Identify the type of reaction in which hydrogen peroxide decomposes into water and oxygen.
Decomposition
All sulfates are soluble except ...
What is Lead, Strontium and Barium
The chemical formula for table salt
What is Sodium chloride?
This type of bonding occurs when atoms share electrons to form molecules.
Covalent Bonding
Which gas is released when zinc reacts with dilute sulfuric acid, and how would you test for this gas?
Hydrogen gas (H₂) is released. To test for it, bring a burning matchstick close to the gas; it produces a characteristic "pop" sound.
What type of reaction is below?
BaCl2(aq)+Na2SO4(aq)→BaSO4(s)+2NaCl(aq)
Double Displacement Reaction
All Halides are soluble except...
Silver, Lead and Mercurous mercury
The chemical formula for sand
What is Silicon dioxide?
This type of bonding occurs in Zinc
What is metallic bonding?
What are alkalis?
Soluble bases that produce hydroxide ions in water
The formation of sodium chloride and bromine when chlorine gas is bubbled into sodium bromide solution.
What is single displacement?
All Metal oxides are insoluble except...
Potassium, Sodium and Calcium
The chemical formula for chalk
What is calcium carbonate CaCO3?
This type of bonding occurs in dinitrogen pentoxide
What is covalent bonding?
A solution of ammonium chloride shows this type of pH when tested with universal indicator paper.
What is acidic?
The chemical equation below features this type of reaction
CaCO3(s)→CaO(s)+CO2(g)
All Hydroxides are insoluble except...
Potassium, Sodium and Ammonium
The chemical formula of limewater
What is Calcium hydroxide Ca(OH)₂ ?
Describe the bonding you would expect to find in a coin made out of copper.
The copper atoms are packed together in rows and the valence electrons from each atom become delocalised. This forms positive copper cations and a sea of mobile electrons. The strong electrostatic forces of attraction between the delocalised electrons and the cations, called the metallic bond, hold the copper lattice together.
This compound reacts with water to form an acid
What is an acid anhydride?
The reaction between calcium hydrogencarbonate and hydrochloric acid to form calcium chloride, carbon dioxide and water
What is acid carbonate reaction?
All Carbonates are insoluble except ...
Potassium, Sodium and Ammonium
Ionic bonds form because of the strong electrostatic attraction between these two types of particles.
What are cations and anions?
This type of bonding occurs between silver and iodine
Ionic bonding