chemistry around us

1. CHEMISTRY AROUND
US
Group 4

2. We ’meet’ chemistry every day. Among
other things, in the kitchen and
bathroom.

3. Chemistry is a natural science that
examines the changes taking place
between substances.

4. The air is a mixture of gases that
contains oxygen and hydrogen.

5. Oxygen and hydrogen in the air:
Oxygen:
20,95%
Hydrogen:
00.00005%

6. Water is a
chemical
compound
and is
essential for
people.

7. We have salt in the kitchen.

8. Sodium
chloride,
kitchen salt
we use
every day
for
seasoning
dishes.

9. The baking
powder
also
contains
salts.

10. Proteins

11. Composed of carbon, oxygen, nitrogen
and phosphorus.

12. Sugar

13. Its molecules
consist of
carbon,
hydrogen
and oxygen.

14. Vitamins

15. The dissolving of vitamin C in
water is a chemical reaction.

16. Chemical products are used in
the food industry as dyes.

17. Sulfuric acid is also often used,
which has corrosive properties
and is used in the production of
detergents and dyes.

18. Mass
production
of food is
impossible
without the
addition of
chemicals.

19. Chemical ingredients
are added to cosmetics.

20. Zinc:
strengthens
the skin.

21. Coal: used
in lipsticks.

22. Oxides:
reflect the
sun’s rays.

23. Acids:
they are used
in treatment
procedures.

24. Salts:
moisturizing
substances

25. Alcohol:
it is used for
perfume
production.

26. Many items are made of
plastic.

27. For example: packaging, bottles,
jars, gloves, mugs, plates.

28. Frying scrambled eggs is a chemical
reaction.

29. Most of the products used every
day have chemical patterns in the
kitchen.

30. Sodium
chloride
(kitchen
salt)
NaCI

31. Hydrogen
oxide
(water)
H2O

32. Sugar
Its chemical
formula is
C12H22010

33. Thank you for
your attention!