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
MAVERICK [17]
3 years ago
10

Will mark brainliest!

Chemistry
1 answer:
KatRina [158]3 years ago
6 0

Answer:

b. 1.20x10^24 molecules NH3

Explanation:

At STP, one mole of gas has a volume of 22.4 dm^3

1 dm^3 = 1 L

Therefore,

44.8 L = 44.8 dm^3

This means that there are 2 moles of NH3 in 44.8 L at STP.

number of molecules = number of moles times avogadro's number

Avogadro's number = 6.02x10^23

Numner of molecules = 2 x 6.02x10^23

= 1.204x10^23 molecules

You might be interested in
The density of an object is calculated as Density = . If 100mL of water weighs 100g calculate the density?
iren2701 [21]
D = mass / volume

d = 100 g / 100 mL

d = 1.0 g/mL
3 0
3 years ago
The arrows show the changes of state.
Romashka [77]

Answer:

condensation

Explanation:

when gases change to liqud it condenses.This occurs when the temperature is lowered

3 0
3 years ago
Which statement describes the reaction involved in cellular respiration?
Masteriza [31]

Answer:

i think its b

Explanation:

if you removed the C02 from the atmosphere that

willl make the 02 and it will

released for the atmosphere

which means, Photosynthesis removes CO2 from the atmosphere and replaces it with O2. Respiration takes O2 from the atmosphere and replaces it with CO2. However, these processes are not in balance. Not all organic matter is oxidized.   photosynthesis mean if you dont know: Photosynthesis – plants produce their own food in the form of glucose using the process of photosynthesis. This process uses sunlight (and so only occurs during the day) to remove carbon dioxide from the atmosphere and release oxygen.

this is why the CO2 is removed and the 02 is released into the atmosphere,   Consumers such as animals, fungi, and bacteria get their energy from this excess biomass either while living or dead and decaying. Oxygen from the atmosphere is combined with carbohydrates to liberate the stored energy. ... Photosynthesis removes CO2 from the atmosphere and replaces it with O2.

and if the CO2 is release from the atmosphere this will happen --> Carbon dioxide causes about 20 percent of Earth's greenhouse effect; water vapor accounts for about 50 percent; and clouds account for 25 percent. ... Likewise, when carbon dioxide concentrations rise, air temperatures go up, and more water vapor evaporates into the atmosphere—which then amplifies greenhouse heating CO2 effects the wither,   Scientists say that if CO2 doubles, it could raise the average global temperature of the Earth between two and five degrees Celsius. We are already increasing the amount of energy that bounces back to the Earth. Because of the greenhouse effect, this is causing global warming with its many destructive impacts.     im sorry that i gave alot of facts my teacher said its good to add alot of facts some of my thoughts thank you i hope you get this right :)

8 0
3 years ago
Read 2 more answers
As time goes on specimens in the fossil record become more
Anika [276]

Answer:

complex

Explanation:

becaause it fits in the words equation I hoped i helped

4 0
2 years ago
What does C represent
zimovet [89]

Answer: the distance of energy from point d to e

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the root word of heat
    11·1 answer
  • Which of the following are producers?
    15·2 answers
  • The electrolyte in a typical wet storage cell or battery is a mixture of water and A. lead. B. ammonium chloride. C. sulfuric ac
    6·2 answers
  • Calculate the molality of a 15.0% by mass solution of MgCl 2 in H 2O. The density of this solution is 1.127 g/mL. Group of answe
    7·1 answer
  • Given the atomic weights of carbon, 12.01; hydrogen, 1.01; and oxygen, 16.0, what is the molar mass of glucose?
    7·2 answers
  • Which of the following correctly describes interactions between Earth's spheres?
    14·1 answer
  • Which is not an example of a
    6·1 answer
  • Discuss some of the biotic (living) and abiotic (nonliving) factors in the chimps’ ecosystem that affect their behavior.
    13·1 answer
  • Increase food supplies in an ecosystem decrease competition because the competing organsims would
    11·1 answer
  • Use the drop-down menus to match the name and structure for the following cycloalkanes. A five-sided polygon. A square. A five-s
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!