Chemical Reactions

Vocab

100

The process by which atoms are rearranged to form new substances

What is chemical reaction

200

The signs and symbols used to represent a chemical reactions

What is a chemical equation

300

Used to represent when something is dissolved in water

What is aq

400

This tells how many moles of each compound react in a given chemical reaction.

What is coefficients

500

Are three signs of a chemical reaction

What is color change, temperature change, gas, bubbles, light, fire, etc...

Parts of an Equation

100

This is the name of the ending substance in a chemical reaction

What is the product

200

This symbol represents a gas substance in an equation

g

300

2Mg + O2 is this in the equation 2Mg + O2 -> 2MgO

What are the reactants

400

Is the total number of oxygen atoms in 3Na₂SO₄

What is 12

500

Fill in the blank: Coefficients have to be ________ numbers 

whole

Balancing Equations

100

What are the coefficients needed to balance the reaction: 

KF ----> K + F₂

2, 2, 1

200

Are the correct coefficients when this equation is balanced K + Br2 -> KBr

What is 2, 1, 2

300

Is the correct coefficients for this balanced equation FeCl3 + KOH -> Fe(OH)3 + KCl

What is 1, 3, 1, 3

400

These are the correct coefficients when this chemical equation is balanced P4 + O2 -> P2O5

What is 1, 5, 2

500

This explains why chemical equations must be balanced

What is the law of conservation of mass? 

Types of Reactions

100

Al + O2 -> Al2O3 is an example of this type of equation

What is synthesis

200

SiO2 + HF -> SiF4 + H2O is and example of this type of equation

What is double replacement

300

These two reactions are opposites of each other.

What is synthesis and decomposition

400

These are products of a combustion reaction of hydrocarbon.

What is CO2 and H2O

500

what type of chemical reaction is this?

 FeCl3 + NH4OH -->

double replacement