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
Sloan [31]
2 years ago
14

PLEASE HELP ME!!!!!!!!!!!!!!!!!!!

Chemistry
1 answer:
Lady_Fox [76]2 years ago
4 0

Answer: Spun yarn is made by twisting staple fibers together

To make a cohesive thread Or “single”. Twisting fibers, into yarn in the process called spinning can be dated back to the upper Paleolithic. Yarn spinning was one of the first processes to be industrialized.

Explanation:

You might be interested in
For the transmutation
zepelin [54]
The answer is a 4^9Be
6 0
3 years ago
The periodic table was developed based upon the work of which scientist?
sveticcg [70]
C. Moosely
It is the Answer to your question.
5 0
3 years ago
Read 2 more answers
How many moles are in 1.2x10^3 grams of ammonia, NH3?
KonstantinChe [14]
I don't have a calculator with me right now, but that mass would be 1200 grams. Divide the given amount of grams by the molar mass of NH3, which is 17.031g/mol. (Nitrogen + 3(hydrogen)). Again, sorry I didn't have a calculator. But all you would need to do is divide 1200 by 17.031. If you need to use sig figs, your answer should have 2 because the 1.2 x 10^3 limits your amount of sig figs.
6 0
3 years ago
How much work (in J) is involved in a chemical reaction if the volume decreases from 4.35 to 1.20 L against a constant pressure
Marianna [84]

Answer:

W = -262 J.

Explanation:

Hello there!

In this case, according to the given information, we can recall the definition of work in terms of constant pressure and variable volume as follows:

W=P(V_2-V_1)

So we plug in the given pressure and volumes to obtain:

W=0.822atm(1.20L-4.35L)\\\\W=-2.60atm*L

Now, we convert this number to J (Pa*m³) by using the shown below conversion factor:

W=-2.60atm*L*\frac{101325Pa}{1atm} *\frac{1m^3}{1000L}\\\\W=-262J

Regards!

3 0
3 years ago
If you put a plant across the room from a window, how will this affect the growth of the plant?
grin007 [14]
The plant will grow towards the light source.
3 0
2 years ago
Other questions:
  • A weather balloon of known initial volume is released. The air pressures ar its initial and final altitudes are known. Why can't
    15·2 answers
  • When naming organic compounds, there are strict rules regarding punctuation.
    6·1 answer
  • Which of the following are uses for radiation and radioactivity that are of benefit to us?
    14·1 answer
  • i. Give two differences between a physical change and a chemical change. ii. Explain whether condensation of water vapor is a ph
    10·2 answers
  • To lift a load of 100 N a distance of 1 m an effort of 25 N must be applied over an inclined plane of length 4 m. What must be d
    7·2 answers
  • What ions would you expect to find when an acid dissolves in water?
    7·1 answer
  • Explain why diffusion occurs more quickly in a gas than in a liquid ?
    10·1 answer
  • The bouncing of a wave off an object is called a what
    15·1 answer
  • Which one of these is not a pathogen?
    10·1 answer
  • 1
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!