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
butalik [34]
3 years ago
12

Question 5 of 5

Chemistry
1 answer:
grandymaker [24]3 years ago
7 0

Answer:

B.

Explanation:

the SI unit for density is the kilogram per Cubic meter

You might be interested in
When 8.00x10^22 molecules of ammonia react with 7.00x10^22 molecules of oxygen according to the chemical equation shown below, h
Pavel [41]
NH₃:

N = 8*10²²
NA = 6.02*10²³

n = N/NA = 8*10²²/6.02*10²³ ≈ 1.33*10⁻¹=0.133mol

O₂:

N=7*10²²
NA = 6.02*10²³

n = N/NA = 7*10²²/6.02*10²³ = 1.16*10⁻¹=0.116mol

4NH₃                   <span>+                        3O</span>₂                      ⇒<span>          2N</span>₂<span> + 6H</span>₂<span>O
</span>4mol                     :                        3mol                   :             2mol
0.133mol             :                        0.116mol           :             0,0665mol
limiting reactant

N₂:

n = 0.0665mol
M = 28g/mol

m = n*M = 0.0665mol*28g/mol = <u>1,862g</u>
6 0
3 years ago
As the temperature of a liquid goes up, the average speed of its particles .This means that the kinetic energy of the particles
kirill115 [55]
The kinectic energy would be decreasing.
7 0
3 years ago
The activation energy of an endothermic reaction _____.
Anon25 [30]
Endothermic reactions are reactions that require heat in the course of the process. The heat of reaction in this case is positive which means the energy of the products is greater than the energy of the reactants. In this case, the answer to this problem would have to be <span>1. must be greater than the required ΔH </span>
3 0
2 years ago
Read 2 more answers
Two litres of an ideal gas at a pressure of 10 atm expands isothermally into a vacuum until its total volume is 10 litres. How m
nlexa [21]

Answer:

The work done and heat absorbed are both -8,1 kJ

Explanation:

The work done in an isobaric process is defined as:

W = -P (Vf - Vi)

Where P is pressure ( 10 atm)

Vf = 10 L

Vi = 2 L

Thus, <em>W = -80 atm×L ≡ -8,1 kJ</em>

This is the work done in expansion of the gas.  As the gas remains at the same temperature, there is no change in internal energy doing that all work was absorbed as heat.

I hope it helps!

4 0
3 years ago
Last time I'm asking this, answer, this time, 50 points.
EleoNora [17]

Explanation:

Well i mean clothes so cells make tissues which help organs clothes can technically help you if you fall it has layers so it woulf be as a cell?

6 0
2 years ago
Other questions:
  • With regard to wind, describe the time of day that an early explorer might have planned to enter a harbor and when he might have
    14·2 answers
  • Which of the following pairs of reactants is not correctly listed with its product solution? A. Weak base-strong acid reactants—
    7·2 answers
  • A sample of an unknown biochemical compound is found to have a percent composition of 45.46 percent carbon, 7.63 percent hydroge
    5·1 answer
  • Choose the more sensible temperature. Cold day: 20 degrees Celsius or -20 degrees Celsius
    8·1 answer
  • For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydroge
    11·1 answer
  • A pure gold ring (c = 0.128 J/g°C) and pure silver ring (c = 0.235 J/g°C) have a total mass of 16.891 g . The two rings are heat
    9·1 answer
  • Plz help me asap even faster then asap
    14·1 answer
  • Whitch statemeant correctly describes a physical change.
    15·2 answers
  • What is the quire drought of hotdog water and why does it taste wired
    12·1 answer
  • Help quick! Will mark brainlest!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!