Counting Atoms
How many molecules are in the chemical formula: 5Al(C₂H₃O₂)₂
What is 5?
True or False: The following equation is balanced LiCl → Li + Cl2
What is False?
2K + Cl₂ → 2KCl is an example of what type of reaction
What is Synthesis?
is a process in which one or more substances, the reactants, are converted to one or more different substances, the products.
What is a Chemical Reaction?
An ice cube melting
What is Physical Change?
How many elements are in the chemical formula: 5Al(C₂H₃O₂)₂
What is 4?
Is the following equation balanced?
Fe + 3H2(SO4) → Fe(SO4)3 + 3H2
What is yes?
2KClO₃ → KCl + 3O₂ is an example of what type of reaction?
What is Decomposition?
Where the reactants located in a Chemical reaction/equation
What is to the left of the arrow?
Mixing Salt with Water
What is a Physical Change?
How many atoms of Carbon are in the following chemical Formula: 5Al(C₂H₃O₂)₂
What is 20?
Balance the following equation:
___ HCN + ___ Sr(OH)2 → ___ Sr(CN)2 + ___ H2O
What is 2HCN + Sr(OH)2 → Sr(CN)2 + 2H2O?
AgNO₃ + NaCl → AgCl + NaNO₃ is an example of what type of reaction
What is Double Displacement?
Where are the products located in a chemical reaction/equation?
What is to the right of the arrow?
Frying an Egg?
What is Chemical Change?
How many atoms of Hydrogen are in the following chemical Formula: 5Al(C₂H₃O₂)₂
What is 30?
The Law of Conservation of Matter/Mass states...
What is mass/atoms cannot be created or destroyed in a closed system?
Zn + CuSO₄ → ZnSO₄ + Cu is an example of what type of reaction
What is Single Displacement?
A chemical reaction that gives off energy
What is an Exothermic Reaction?
An apple turning brown
What is Chemical Change?
5Al(C₂H₃O₂)₂ has how many TOTAL atoms?
What is 75?
Balance the following equation:
_____NaF + ______Br2 -->______NaBr + ______F2
What is 2NaF + Br2 --> 2NaBr + F2?
CH₄ + 2O₂ ⇾ CO₂ + 2H₂O is an example of what type of reaction
What is Combustion?
A chemical Reaction that absorbs energy or feels cold is called a(n) ____________ _______________
What is an Endothermic Reaction?
The 5 clues discussed in class that a chemical change has occurred
What are:
1. Unexpected Color Change
2. Unexpected Temperature Change
3. Combustion/Burning
4. Precipitates form
5. Bubbles form