1
Hydrogen + Oxygen → Water
Identify the reactants.
Hydrogen and Oxygen
Soaps are produced through ______.
Saponification
Matter cannot be created or destroyed during a chemical reaction.
What Law is this?
2 types of combustion
Complete and incomplete combustion
Happens when one compound splits into two or more simpler substances.
Decomposition reaction
SPECIAL POWERS
Steal 500 from another group and skip them the next round.
Read the equation:
Mg(s) + 2HCl(aq) → MgCl₂(aq) + H₂(g)
Magnesium reacts with 2 molecules of hydrochloric acid results in Magnesium Chloride and Hydrogen gas.
SPECIAL POWER
Steal 700 from another group.
What gas is released when an acid reacts with a carbonate?
Carbon dioxide (CO₂)
Vinegar is mixed with baking soda and bubbles immediately appear. What type of reaction is this?
Acid–carbonate reaction
Substances located on the left side of a chemical equation.
REACTANTS
Which among the following is NOT an indicator of Chemical Reaction?
Gas formation (bubbles)
Uneven cut edges
Color change
Formation of a solid (precipitate)
Uneven cut edges
____ is a chemical reaction in which a substance reacts with oxygen, usually releasing energy in the form of heat and often light.
Combustion.
Complete: Acid + Carbonate → Salt + _____ + _____
Water + Carbon dioxide
The use of baking powder in making biscuits is an example of ______ reaction.
Acid-carbonate
Magnesium reacts with hydrochloric acid and produces bubbles.
Acid-metal reaction or combustion?
ACID - METAL
Metal + acid commonly produces a salt and hydrogen gas (H₂).
What's the difference between combination and decomposition reaction? Site examples.
Decomposition reaction is the breakdown of a compound into simpler molecules while Combination reaction happens when reactants combine to form one main product.
Complete the equation when you perform electrolysis of water.
2H2O(g) ---> _____ + ______
2H2(g)+ O2(g)
BOMB
-400
What's the difference between complete and incomplete combustion?
Incomplete combustion produces SOOT.
How is water formed?
____ + _____ --> 2H2O
2H2 + O2
Complete the acid - metal reaction.
Acid + Metal → ____ + ______
Salt + Hydrogen Gas (H₂)
CH₄ + 2O₂ → CO₂ + 2H₂O + Energy
Acid-carbonate reaction, Acid-metal reaction or combustion?
COMBUSTION
Fuel + Oxygen → Carbon Dioxide + Water + Energy
SPECIAL POWERS
Steal 500 points from another group.
OXYGEN