TYPES OF CHEMICAL REACTION
MADALI
MAHIRAP
MAS MAHIRAP
APAKAHIRAP
100

This is the formula for carbon dioxide.

What is CO2?

100
By definition, the Law of Conservation of Mass states that matter (mass) may not be __________ nor _________ .
What is created / destroyed.
100
This is found on the left side of the yields sign. In other words, what goes in to the reaction.
What is the reactant?
100
This is the second step in balancing any chemical equation.
What is to list and count the elements present on each side of the arrow?
100

This chemical equation is balanced (true or false): K + MgBr --> KBr + Mg

What is true?

200
This is the name for the compound SO3.
What is sulfur trioxide?
200
This is the force that holds atoms in a compound together.
What is chemical BOND?
200
This sign indicates the direction of the reaction, and separates reactants from products.
What is the yields sign OR the arrow?
200
When balancing a chemical equation, you are able to add or change these.
What are coefficients?
200
Balance the following chemical equation: __ N2 + __ H2 --> __ NH3
What is N2 + 3H2 --> 2NH3?
300
This is the formula for dinitrogen pentoxide.
What is N2O5?
300
Twelve grams of reactant X combine with fifteen grams of reactant Y. This is the total mass of the product(s). (HINT: Think of the Law of Conservation of Mass!)
What is twenty seven grams?
300
This is found on the POINTY side of the arrow. It is the end result of a chemical reaction.
What is the product?
300
Within a chemical formula, if you don't see a subscript, you can know that there are this many atoms of that element within each molecule.
What is one?
300
Balance the following equation: __ Ag2O --> __ Ag + __ O2
What is 2Ag2O --> 4 Ag + O2?
400
This is the name for Mg7Cl2
What is heptamagnesium dichloride?
400

This is the name assigned to a Virtual Lab available in www.ExploreLearning.com.

What is a Gizmo?

400
This best explains the definition of the term coefficient.
What is the number of molecules of a given substance?
400
Once the number of atoms of each element balances on each side of the yields sign, this is the final step in balancing all equations.
What is to recheck and simplify if necessary?
400
Balance the following chemical equation: __ AlBr3 + __ K2SO4 --> __ KBR + __ Al2(SO4)3
What is 2AlBr3 + 3K2SO4 --> 6KBR + Al2(SO4)3?
500
This is the name for the compound As4Be3.
What is tetraarsenic triberyllide?
500
This is the formula when you combine the following elements: Fe+3, O-2.
What is Fe2O3?
500
This best explains the term subscript.
What is the small number that denotes the number of atoms of each element within a compound?
500
What do you NEVER change when balancing a chemical reaction?
What is the subscript?
500
Balance the following chemical equation: __HNO3 + __ NaHCO3 --> __ NaNO3 + __ H2O + __ CO2
What is already balanced?
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