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
MrRa [10]
4 years ago
6

Hurry!! Which feature of the microscope did Anton van Leeuwenhoek add that enabled him to magnify organisms about 250 times?

Chemistry
2 answers:
serious [3.7K]4 years ago
8 0

Answer:

polished lenses

Explanation:

jek_recluse [69]4 years ago
6 0

Answer: Polished lenses.

Explanation: thats just the answer lol

You might be interested in
Which of the following contains both ionic and covalent bonding?
djyliett [7]
I believe the correct answer from the choices listed above is the first option. The compound that contains both ionic and covalent bonding is KOH or potassium hydroxide. It contains one covalent<span> (O-H) and one that is </span>ionic<span> (K-O). Hope this helps.</span>
7 0
3 years ago
Read 2 more answers
Calculate the following:
Brrunno [24]

Follow these steps to solve the given equation:

Multiply the two decimal figures together and find the sum of the exponents, that is,

(1.5 * 1.89) * 10 ^4+3

(2.835) * 10^7

10^7 can also be written as e.70

'e' stands for exponential. 

Therefore, we have  2. 835 e 7.0 = 2.8 e 7.0.

Based on the calculations above, the correct option is A. 

4 0
3 years ago
Heterotrophic bacteria obtain food by
BARSIC [14]
Heterotrophic cells must ingest biomass to obtain their energy and nutrition. Heterotrophic microorganisms mostly feed upon dead plants and animals, and are known as decomposers. ... Some animals also specialize on feeding on dead organic matter, and are known as scavengers or detritivores. Hope this was helpful.
5 0
4 years ago
A gas evolved during the fermentation of sugar was collected at 22.5°C and 702 mmHg. After purification its volume was found to
miskamm [114]

Answer:

A) 0.95 mol

Explanation:

We will assume the gas given off in the fermentation is an ideal gas because that allows us to use the ideal gas equation.

PV  = nRT

First let's convert all measurements to units that we can use

P = 702 mmHg * 1 atm/760 mmHg = 0.92368 atm

V = 25.0 L

R = 0.08206 L-atm/mol-K

T = 22.5 °C +273.15 = 295.65 K

PV  = nRT

0.92368 atm * 25.0 L = n * 0.08206 L-atm/mol-K * 295.65 K

                                  n = 0.9518 mol

4 0
3 years ago
What form of matter is made from only one type of atom? compound molecule material element
Lelechka [254]
<span>Elements are matter made of one kind of atom.</span>
6 0
3 years ago
Read 2 more answers
Other questions:
  • R-12 should be recycled instead of vented to the atmosphere because
    14·2 answers
  • Which blood glucose-lowering hormones is produced by the pancreatic islet cells
    6·1 answer
  • The value of ΔG° at 181.0 °C for the formation of calcium chloride from calcium metal and chlorine gas is ________ kJ/mol. At 25
    11·1 answer
  • If an 900.0 g sample of radium-226 decays to 225.0 g of radium-226 remaining in 3,200 years, what is the half-life of radium-226
    15·1 answer
  • Which of the following statements describe constructive interference
    5·1 answer
  • Question 15 of 32
    13·1 answer
  • Determine the number of unpaired electrons expected for [Fe(NO2)6]3−and for [FeF6]3− in terms of crystal field theory.
    13·1 answer
  • Which of the following is true of oxygen?
    12·1 answer
  • Which option correctly describes the reactants and products of a chemical reaction?.
    11·1 answer
  • Which of the following chemical equations are correctly balanced? Balance the equations that are not balanced.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!