Answer: It may cause the bacteria to become resistant to them and one they are resistant then the antibiotics are ineffective against the bacteria. It is then more dangerous since new antibiotics will need time.
Explanation:
#6 is A. They are all composed of one or more cells.
Kinetic theory of matter is the movement of the particles of the substance and temperature is the measurement of hot or cold over a period of time
Answer:
The correct answer is A. 3O₂ + 2Al → 2AlO₃
Law of conservation of mass states that mass can nether be created nor destroyed in a closed system or chemical reaction i.e. the total mass of the matter always remains the same throughout the chemical or physical change.
For example, in the given reaction 3O₂ + 2Al → 2AlO₃ the total mass of the reactants is equal to the total mass of the product.
Mass of oxygen = 16 x 3 = 48 AMU
Mass of aluminium = 2 x 27 = 54 AMU
Total molecular mass of the reactants = 102 AMU
Total molecular mass of the product = 2 x 27 + 6 x 8 = 102 AMU.
Hence, the total mass of the matter remains the same.
Greek and plomety......................
