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
notka56 [123]
3 years ago
15

I need somebody to help me with my homework pls i dont get it .

Chemistry
1 answer:
zubka84 [21]3 years ago
7 0
26. B
27. D
28. C
Hope this helped ☺️
You might be interested in
15
damaskus [11]
Mostly in my opinion I think it’s the secound one
8 0
3 years ago
True or False?
Archy [21]
True.................
4 0
3 years ago
Which units are used to measure mass and weight
Elanso [62]

Mass is used to measure the weight of an object. For example, you are measuring the mass of your body when you step on to a scale. In the metric system of measurement, the most common units of mass are the gram and kilogram.

Basically Gram & Kilograms

5 0
3 years ago
Read 2 more answers
How many inches long is a football field
Dominik [7]
120 feet usually....
8 0
3 years ago
Read 2 more answers
What is the difference between polycrystalline and amorphous materials? How are the properties of a polycrystalline material aff
Ahat [919]

Answer:

Explanation:

The difference between Polycrystalline  and Amorphous materials is given as:

Polycrystalline:

  • The atoms in the crystal lattice are arranged in an ordered manner.
  • The particles in the crystal posses a particular geometry
  • The crystal lattice have a specific temperature known as its Melting Point.

Amorphous:

  • There is no specific order in the arrangement of particles in the crystal.
  • They do not have any particular geometry.
  • There is no specific temperature but a range of temperature in which the crystal melts.

The properties of crystalline materials can be constrained by modifying the grain size at the hour of the amalgamation. The mechanical properties can be improved by choosing the grain size so that the quantity of disengagements and grain limits are expanded.  

Usually this should be possible by diminishing the grain size, yet it additionally relies on a ton of different elements relying on the application. The quality of the material is expanded when the grain size is decreased.

Usefulness of smaller grains:

At the point when the size of the grains is decreased to a degree of 100 nm to 1000 nm, we can say we had acquired smaller grain which can be called as ultra-fine grain materials.  

These can be utilized widely for the assembling of nanomaterial which are having a tremendous assortment of utilization and the new regions of use are expanding by step by step.

Usefulness of smaller grains:

Larger grains size is valuable in light dissipating applications, huge size grain has high perceivability to the light and it very well may be utilized in dispersing applications. Larger molecule size is utilized in specific responses to restrict the reactivity to a specific degree.

Applications of Amorphous Material:

  • The amorphous carbon is utilized for the production of Ta-C films which can be utilized for the applications in ultra-flimsy defensive coatings for attractive plates, in cells, batteries and sun powered cells, to keep up inactive layers in electronic gadgets, etc.
  • Amorphous silicon is utilized for the assembling of the Thin Film Transistor (TFT) which is in the end be utilized for computerized x-beam picture detecting, coordinated shading sensors, sensors for CMOS cameras, light-radiating diodes, and so on.
5 0
3 years ago
Other questions:
  • A steam engine (assume a Carnot engine ) has an efficiency of 50.8%. If the waste heat has a temperature of 72.4 ◦C, what is the
    12·1 answer
  • A lead mass is heated and placed in a foam cup calorimeter containing 50.0 ml of water at 18.0°c. the water reaches a temperatur
    9·2 answers
  • What is science in 5 sentences
    10·2 answers
  • In both nuclear fission and nuclear fusion reactions, energy is converted to mass.
    15·2 answers
  • What is the name of the ionic compound AlBr3?
    12·2 answers
  • A compound is found to contain 42.88 % carbon and 57.12 % oxygen by weight. To answer the questions, enter the elements in the o
    6·1 answer
  • Grams would be best to use to measure the mass of which of the following
    11·1 answer
  • In Hooke's law, Fspring=kΔx, what does the ∆x stand for?
    7·2 answers
  • Please help me on this exsam question ASAP!!! Please
    6·1 answer
  • In 1-2 sentences explain how the shorelines can affect weather.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!