Pivot point Electricity & Matter in Cos
Questions with Complete Solutions
What is the pH range of hair, skin and nails? 4.5 to 5.5
pH balanced refers to a product that ranges from a pH of: 4.5 to 5.5
Solution is acidic if it has: more positive hydrogen ions than negative hydroxide ions
Solution is neutral when: It has equal number of positive hydrogen ion and negative
hydroxide ions
Solutions is alkaline if it has: more negative hydroxide ions that positive hydrogen ions
Acidic water tends to taste sour, reacts strongly to metals
Matter with a defined weight, volume and shape solid matter
, Matter with a defined weight and volume but no shape liquid matter
Matter with a defined weight but indefinite shape or volume Gas matter
What is organic chemistry? deals with all matter that is now living or was alive at one
time, with carbon present.
What is inorganic chemistry? studies all matter that is not alive and never been and does
not contain carbon.
What is chemistry? the scientific study of matter and the physical and chemical changes
of matter
What does COHNS stand for? carbon, oxygen, hydrogen, nitrogen & sulphur
What is a proton? It's the positive electrical charge and identifies the atom for example the
hydrogen atom
Questions with Complete Solutions
What is the pH range of hair, skin and nails? 4.5 to 5.5
pH balanced refers to a product that ranges from a pH of: 4.5 to 5.5
Solution is acidic if it has: more positive hydrogen ions than negative hydroxide ions
Solution is neutral when: It has equal number of positive hydrogen ion and negative
hydroxide ions
Solutions is alkaline if it has: more negative hydroxide ions that positive hydrogen ions
Acidic water tends to taste sour, reacts strongly to metals
Matter with a defined weight, volume and shape solid matter
, Matter with a defined weight and volume but no shape liquid matter
Matter with a defined weight but indefinite shape or volume Gas matter
What is organic chemistry? deals with all matter that is now living or was alive at one
time, with carbon present.
What is inorganic chemistry? studies all matter that is not alive and never been and does
not contain carbon.
What is chemistry? the scientific study of matter and the physical and chemical changes
of matter
What does COHNS stand for? carbon, oxygen, hydrogen, nitrogen & sulphur
What is a proton? It's the positive electrical charge and identifies the atom for example the
hydrogen atom
