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
natima [27]
3 years ago
11

26. At high temperatures these elements conduct electricity but at lower temperatures they do not conduct electricity. This make

s them useful in electronic devices. What are these elements?
explain answer
Chemistry
2 answers:
LenaWriter [7]3 years ago
4 0

A semiconductor conducts electricity at high temperatures, but not at low temperatures. At high temperatures, metalloids act like metals and conduct electricity.

Explanation:

start using quizlet. it has every anwser

DochEvi [55]3 years ago
3 0
Its all on quizlet.........
You might be interested in
If 3.8 moles of zinc metal react with 6.5 moles of silver nitrate, how many moles of silver metal can be formed, and how many mo
bulgar [2K]

<u>Answer:</u> 6.5 moles of silver metal is formed in the given chemical reaction. The moles of excess reagent left are 0.55 moles.

<u>Explanation:</u>

To calculate the moles of silver formed and the moles of excess reagent left after the reaction, we need to balance the equation first and need to find the limiting and excess reagent.

The balanced chemical equation is:

Zn+2AgNO_3\rightarrow Zn(NO_3)_2+2Ag

By Stoichiometry:

2 moles of Silver nitrate reacts with 1 mole of Zinc metal

So, 6.5 moles of silver nitrate will react with = \frac{1}{2}\times 6.5=3.25moles of zinc metal

The required amount of zinc metal is less than the given amount of zinc metal,  hence, it is considered as an excess reagent.

Therefore, silver nitrate is the limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

2 moles of silver nitrate produces 2 moles of silver metal

So, 6.5 moles of silver nitrate will produce = \frac{2}{2}\times 6.5=6.5moles of silver metal.

Number of moles of excess reagent left after the completion of reaction = (3.8 - 3.25)moles = 0.55 moles

Hence, 6.5 moles of silver metal is formed in the given chemical reaction. The moles of excess reagent left are 0.55 moles.

7 0
3 years ago
Porcelain x has much smaller crystals in it than porcelain Y. suggest a reason for that
Artyom0805 [142]

Answer: 22

Explanation:

6 0
3 years ago
What is Centripetal force?
makvit [3.9K]

A. A force that acts on a body moving in a circular path

6 0
3 years ago
24. Element X has five valence electrons, element Y has one valence electron, and element Z has one valence electron. Which two
natka813 [3]
Elements Y and elements Z would have similar properties due to the fact that they both posses the same number of valence electrons. They both have a single valence electron that determines the corresponding elements bonding properties and the fact that it can either donate 1 valence electron to produce an ion that would be attracted to another atom, that is also an ion. Assuming that these elements are group 1 elements, they do not undergo in covalent bonding.
3 0
3 years ago
Read 2 more answers
The metal tantalum becomes superconducting at temperatures below 4.483 K. Calculate the temperature at which tantalum becomes su
masha68 [24]

Answer:

The correct answer is "-268.667°C".

Explanation:

Given:

Temperature,

= 4.483 K (below)

Now,

The formula of temperature conversion will be:

⇒ T(^{\circ} C)=T(K)-273.15

By putting the values, we get

⇒            =4.483-273.15

⇒            =-268.667^{\circ} C

Thus the above is the correct answer.

3 0
3 years ago
Other questions:
  • Are the particles in a solid motionless ?
    9·1 answer
  • A solution is made by mixing 124. g of acetyl bromide (CH COBI and 119. g of chloroform (CHCI3) Calculate the mole fraction of a
    14·1 answer
  • Write a nuclear equation to represent radium-226 decaying to radon-222 plus an alpha particle.
    11·1 answer
  • For each chemical reaction, fill in the exponents in the formula for Ks
    9·1 answer
  • A(n) _____ is a compound that produces hydrogen ions when dissolved in water.
    6·2 answers
  • The correct name of the compound with the formula pbo2 is
    10·1 answer
  • When a salt is dissolved in water the result is called
    14·1 answer
  • A mixture of Oxygen and Hydrogen occupies a pressure of 101.3kPa. The pressure of Hydrogen is 56kpa. Calculate the pressure of o
    9·1 answer
  • What is the name of the molecule shown below?
    8·1 answer
  • When 0.250 moles of a gas is placed in a container at 298K, it exerts a pressure of 93kPa. What is the volume of the container?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!