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
krek1111 [17]
2 years ago
6

Who Invented microscopes? (This one is for fun. I will be giving away 50 points to the first person!)

Chemistry
1 answer:
Liula [17]2 years ago
6 0
Zacharias Janssen invented the microscope.
You might be interested in
When a person pushes off a wall with 15N of force,how much force does the wall push back
aivan3 [116]
Newton's third law of motion states that for every action force, there is an equal and opposite reaction force so that means that the wall is pushing you with the same amount of force that you put on it.
5 0
3 years ago
Mention two acids found in the human body and their functions.
Lelu [443]
Amino Acids- To build proteins.
Hydrochloric Acids- Help humans digest foods.
3 0
3 years ago
What happens to an object's temperature if the kinetic energy of its particles decrease
ser-zykov [4K]
The temperature decreases
8 0
3 years ago
If the potato solution was boiled for 10 minutes and cooled for 10 minutes before being tested, the average time for the disks t
igor_vitrenko [27]

Answer:

Option D: More than 30 seconds

Explanation:

The enzyme CATALASE is found in almost all living organisms. CATALASE helps in the decomposition of one substance into another substance. CATALASE will breaks down hydrogen peroxide into water and oxygen.

When the potatoes were boiled it will surely produce no bubbles because the heat would have degrade the enzyme - catalase While the potatoes at room temperature potato produced the most bubbles because catalase works best at a room temperature.

If the potato solution was boiled for 10 minutes and cooled for 10 minutes before being tested, the average time for the disks to float to the surface of the hydrogen peroxide solution would be MORE THAN 30 SECONDS

5 0
3 years ago
Read 2 more answers
if a standard die is rolled twice what is the probability of getting a perfect square,then a number that is less than 5.
solniwko [45]
There are three perfect squares in a standard die; 1, 2, 4. If there is two standard dies, then the probability of getting a perfect square is 1/3 x 1/3 = 1/9. 
There are 4 numbers less than 5 in a standard die, making it 1/4 x 1/4=1/16. 
5 0
3 years ago
Other questions:
  • In sexual reproduction, an offspring is produced with genes from both parents. When the offspring has a new genetic variation th
    13·1 answer
  • Moises performs a chemical reaction according to the reaction
    10·1 answer
  • What would be the composition and ph of an ideal buffer prepared from lactic acid (ch3chohco2h), where the hydrogen atom highlig
    9·1 answer
  • Which. option is an example of physical property
    13·2 answers
  • Which sentence describes two atoms that form a covalent bond?
    13·1 answer
  • Describe one way that grazing animals, such as bison or cattle, help to maintain grassland ecosystems.
    14·1 answer
  • In a titration, a few drops of an indicator are added to a flask containing 35.0 milliliters of HNO3(aq) of unknown concentratio
    13·1 answer
  • Answer please correctly
    11·2 answers
  • The nucleus’ pull on its electrons, taking into account any attractions weakened by shielding is called the:
    12·1 answer
  • . how do some deep-sea animals use their bioluminescence, or ability to give off light? (select all that apply.)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!