Chemical Reactions
This type of chemical reaction involves one substance breaking down into two or more simpler substances.
What is a decomposition reaction?
The products of a combustion reaction involving a hydrocarbon typically include these two substances.
What are carbon dioxide (CO₂) and water (H₂O)?
To balance H₂ + Cl₂ → HCl, this coefficient is placed in front of HCl.
What is 2?
This type of bond forms when electrons are transferred from one atom to another.
What is an ionic bond?
This mammal is the only one capable of true sustained flight.
What is a bat?
The substances that go into a chemical reaction are called these.
What are reactants?
When sodium reacts with chlorine gas, this compound is formed.
What is sodium chloride (NaCl)?
In the balanced equation N₂ + H₂ → NH₃, this coefficient is placed in front of H₂.
What is 3?
Carbon dioxide (CO₂) is an example of this type of compound.
What is a covalent compound?
This microscopic animal can survive extreme conditions, including space, and is nicknamed the “water bear.”
What is a tardigrade?
A reaction where two compounds exchange ions to form two new compounds is called this.
What is a double displacement reaction?
In a single replacement reaction, zinc reacts with copper(II) sulfate to produce copper metal and this compound.
What is zinc sulfate (ZnSO₄)?
To balance Al + HCl → AlCl₃ + H₂, this coefficient is placed in front of HCl.
What is 6?
This compound, N₂O₅, is named using covalent prefixes as this.
What is dinitrogen pentoxide?
This marine animal has three hearts and blue blood.
What is an octopus?
A reaction that absorbs energy from its surroundings is described by this term.
What is an endothermic reaction?
When hydrochloric acid reacts with sodium hydroxide, these two products are formed.
What are sodium chloride (NaCl) and water (H₂O)?
In the balanced equation C₂H₆ + O₂ → CO₂ + H₂O, this coefficient is placed in front of O₂.
What is 7?
The compound formed between aluminum and oxygen has this chemical formula.
What is Al₂O₃?
This mammal has the densest fur of any animal, with up to a million hairs per square inch.
What is a sea otter?
This gas is commonly produced when acids react with metals and is highly flammable.
What is hydrogen gas?
When calcium carbonate is heated, it decomposes into calcium oxide and this gas.
What is carbon dioxide (CO₂)?
To balance FeS₂ + O₂ → Fe₂O₃ + SO₂, this coefficient is placed in front of O₂.
What is 11?
This type of compound conducts electricity when dissolved in water due to the presence of mobile ions.
What are ionic compounds?
This tiny primate, one of the smallest in the world, can rotate its head nearly 180 degrees and is native to Southeast Asia.
What is a tarsier?