1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Digiron [165]
4 years ago
15

Write about discovery of penicillin​

Chemistry
2 answers:
Rzqust [24]4 years ago
6 0

Answer:

The Scottish physician Alexander Fleming was the first to suggest that a Penicillium mould must secrete an antibacterial substance, and the first to concentrate the active substance involved, which he named penicillin, the first modern antibiotic, in 1928.

Sergio039 [100]4 years ago
4 0

Answer:

Penicillin was discovered in London in September of 1928. As the story goes, Dr. Alexander Fleming, the bacteriologist on duty at St. Mary’s Hospital, returned from a summer vacation in Scotland to find a messy lab bench and a good deal more.

You might be interested in
[Help, Help, Help! Stoichiometry and Gases, please explain]
Irina18 [472]
At STP, it is at 273 K and 1.00 atm.
Use PV=nRT to and solve for n (number of mol of N2)
1.00 atm • 4.40L / 0.08206 Latm/molK • 273 K = 0.196 mol N2
There are two mol of N2 for every two mol of NH4NO2 (the number of mol of both are equal)
Find the molar mass of NH4NO2 = 64.1 g
Multiply the number of mol by the molar mass
0.196 mol • 64.1 = 12.6 g NH4NO2
3 0
3 years ago
Read 2 more answers
How many atoms are in 0.750 moles of zinc?
ollegr [7]
Best Answer: 4.52 X 10²³ atoms. Use Avogadro's number to multiply 0.750 moles times 6.022 X 10²³
5 0
3 years ago
During which process are of rock material being moved over earth’s surface by water and wind?
shtirl [24]
Wind and water erosion
 
5 0
3 years ago
How to spell poop help please
Thepotemich [5.8K]

Answer:

sdadasnj

Explanation:

7 0
2 years ago
Read 2 more answers
Why is it that the decomposition of nitroglycerin can result in so
patriot [66]

Answer:

with the molecular formula C3H5(ONO2)3, has a high nitrogen content (18.5 percent) and contains sufficient oxygen atoms to oxidize the carbon and hydrogen atoms while nitrogen is being liberated, so that it is one of the most powerful explosives known.

Explanation:

NTG reduces preload via venous dilation, and achieves modest afterload reduction via arterial dilation. These effects result in decreased myocardial oxygen demand. In addition, NTG induces coronary vasodilation, thereby increasing oxygen delivery.

3 0
3 years ago
Other questions:
  • How are energy and mass connected during the formation of an atom?
    15·1 answer
  • Find the approximate atomic mass of a water molecule (h2o). give your answer in atomic mass units rounded to the nearest whole n
    7·2 answers
  • What is the difference between electric force and electricity
    15·1 answer
  • Decaying organic matter and sediment eventually settle in the ocean's _______.
    9·1 answer
  • Gaseous ethane will react with gaseous oxygen to produce gaseous carbon dioxide and gaseous water . Suppose 2.71 g of ethane is
    15·1 answer
  • How is enthalpy used to predict whether a reaction is endothermic or exothermic?
    8·1 answer
  • a student determined that it requires 106220 j of energy to vaporize 47g of water. is the student is right​
    8·1 answer
  • Phosgene (carbonyl chloride), COCl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. Phosgene
    5·1 answer
  • (50 points help ASAP it’s due 10mins)About how much more TE does it take to change the temperature of 1 kg of water compared to
    6·1 answer
  • Which statement best describes how inflating a balloon is evidence of matter?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!