5-1 & 5-2
what are some common properties of acids and bases?
acid - release H+ions in water, tastes sour, painful on the skin, reacts with metal
Bases - release OH- ions in water
pH level 6 is: (acid, neutral, bases)
Acid
Define the word Neutralization
The act of making a substance neutral
Define the definition for chemical and physical properties.
Properties that can be observed about a substance without changing its identity.
Properties that can be observed about a substance as it reacts with other substances.
What are the 5 types of chemical reactions?
Synthesis, Decomposition, Combustion, Single Displacement, Double Displacement
explain strong acids and weak acids
strong acids fully dissociate, releasing many H+ions. Weak acids partially dissociate releasing fewer H+ions, taste bitter, feels slippery, and react with oils and greases
Indicators are substances that change ____
Color
What kind of reaction does Neutralization have?
Double displacement reaction which means, the ions in two compounds switch places and form to brand new compounds
What is a change that where no new substances are produced? Is it chemical or physical change?
Physical change
What is a rate of a reaction?
How fast reactants are changed into products
what are some properties of Ionic bonds?
form crystals, hard and brittle, very high melting point, conductors when dissolved in water, insulators when solid
When you use Phenolphthalein (PHPH), bases substance turns into ____ color
Pink
What color does mixture of pH 0 and pH 14 show?
Green
What are all the states that are physical changes?
Freezing, Melting, Evaporating, Sublimation, Deposition, Condensation.
What kind of reaction is called when 1 substance breaks down into 2+simpler substances?
Decomposition Reaction
what are the two types of bonding and explain how they form
Ionic bonds form between metals that lose valence electrons and nonmetals which gain valence electrons, covalent bonding forms between nonmetals so they have to share electrons
Three indicators used most often are:
Litmus paper, Phenolphthalein (PHPH), and Universal Indicator (UI)
Explain one example of Neutralization
Bee stings & baking soda
Bee stings & Vinegar
Indigestion & antacid
Cavities & toothpaste
What are all 3 techniques to balance the equations in different ways?
'MeNoh Method’ , ‘Even Steven’ , ‘ Keep It Simple’
What is a rate?
The speed of a reaction
what are the formula and common name for sodium hydroxide, sodium hypochlorite
sodium hydroxide: NaOH, Iye
sodium hypochlorite: NaCIO, bleach
What color does hydrangea turn in bases soil?
Blue
What is formula for Neutralization?
Acid + Bases = Water + Salt
Chemical equation has to be balanced, in order to be balanced what do we have to do?
The total mass of the reactants atoms must equal the total mass of the product atoms.
What is the general format of a Synthesis reaction?
A + B → AB