C.4 - Different groups in periodic table Flashcards
True or False: Chemical reactions can be predicted based on the reactivity of elements.
True
Fill in the blank: The ability to predict the products of a chemical reaction is based on the ________ of the reactants.
properties
What is a common method to predict the products of a reaction between an acid and a metal?
The products will typically be a salt and hydrogen gas.
Which type of reaction involves the exchange of ions between two compounds?
Double displacement reaction
What is the general formula for a combustion reaction?
Hydrocarbon + Oxygen → Carbon Dioxide + Water
True or False: All chemical reactions are reversible.
False
What is the product of the reaction between an acid and a base?
Salt and water
In the reaction of sodium with chlorine, what are the products?
Sodium chloride (table salt)
What type of reaction occurs when an element displaces another in a compound?
Displacement reaction
What is the role of a catalyst in a chemical reaction?
To speed up the reaction without being consumed.
What is the law of conservation of mass
Mass can not be created or destroyed
Fill in the blank: The products of a reaction can often be predicted using the ________ series.
reactivity
What is the general reaction type for photosynthesis? Ex or end
Endothermic reaction
Predict the product of the reaction: Calcium + Water.
Calcium hydroxide + Hydrogen gas
What is a characteristic of exothermic reactions?
They release heat.
True or False: The products of a reaction can be determined only after the reaction has occurred.
False
What type of reaction is represented by the equation: A + B → AB?
Synthesis reaction
Fill in the blank: The study of predicting chemical reactions is important for ________ applications.
industrial
What does it mean if a reaction is described as ‘irreversible’?
The products cannot be converted back to reactants.
What is the significance of reaction conditions in predicting chemical reactions?
They can influence the rate and products of the reaction.
What are the group 1 elements called?
Alkaline metals - they react with water to form alkaline solutions
Properties of group 1 elements?
Shiny when cut, good conductors of electricity
What are group 1 elements stored in to keep them fresh?
Oil
Does the reactivity increase or decrease as you go down the reactivity series?
Increase
Properties of group 7 elements?
Non metals, non good conductors of electricity. Brittle in solid state.
Do group 7 have strong or weak inter-molecular forces?
Weak
What state and colour are fluorine and chlorine at room temperature?
F = pale yellow gas
C = Green gas
What state and colour is bromine and iodine?
B - orange/brown liquid
I - grey/black solid
