Preview (11 questions)
1 Question
לפני 30 שניות
Q.


Which law determines the chemical reaction?




Law of mass action

Avogadro's law

Laws of Chemical Combination

Law of conservation of mass

2 Question
לפני 30 שניות
Q.


What symbol is that the reactants are separated in the chemical reaction?




+ sign

- sign

/ sign

none of the mentioned

3 Question
לפני 30 שניות
Q.


What is the substance involved in a chemical reaction called?




Polyimide

Cellulose acetate

Reactant

Vinyl chloride

4 Question
לפני 30 שניות
Q.


Which Substitution reaction leaves the group and creates carbocation?




S1N1 mechanism

S1N mechanism

SN mechanism

SN1 mechanism

5 Question
לפני 30 שניות
Q.


How many types of Nucleophilic substitution take place in mechanisms?




1

3

4

2

6 Question
לפני 30 שניות
Q.


What is the ability of a substance to be drawn into thin wires?




Amylase

Uric acid

Ductility

Enzyme

7 Question
לפני 30 שניות
Q.


What is the ability of a substance to be drawn into thin wires?




Amylase

Uric acid

Ductility

Enzyme

8 Question
לפני 30 שניות
Q.


Which chemical reaction uses the direct electric current to drive the chemical reaction?




Lipase

Electrolysis

Catalase

Peptide

9 Question
לפני 30 שניות
Q.


Which properties that do depend on the amount of matter present?




Extensive properties

Intensive properties

Chemical properties

All of the mentioned

10 Question
לפני 30 שניות
Q.

State True or False.


Biochemical reactions are controlled mainly by complex proteins called enzymes.



True

False

11 Question
לפני 30 שניות
Q.


Which reactions add the monomer molecules together to form chains?




Ferrocene

Polymerization

Metallocene

Polyethylene