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
ohaa [14]
3 years ago
10

A material that conducts electricity only at high temperatures.

Chemistry
1 answer:
vfiekz [6]3 years ago
8 0

Answer:

Semiconductor

Explanation:

Semiconductors conduct electricity as the temperatures increase.

Hope this helped.

You might be interested in
What are the chemical processes used to make chloroquine?
4vir4ik [10]
You spell Chlorine wrong but the process is called electrolysis  
6 0
3 years ago
How many neon atoms are contained in (7.27x10^2) grams of neon?
statuscvo [17]

Answer: 2.19x10^25 atoms

Explanation:

Molar Mass of Neon = 20g/mol

1mole(20g) of Neon contains 6.02x10^23 atoms.

Therefore, 7.27x10^2g of Neon will contain x atoms i.e

X atoms = (7.27x10^2x6.02x10^23)/20 = 2.19x10^25 atoms

4 0
3 years ago
Use the standard reaction enthalpies given below to determine ΔH°rxn for the following reaction:P4(g) + 10 Cl2(g) → 4PCl5(s) ΔH°
miskamm [114]

<u>Answer:</u> The \Delta H^o_{rxn} for the reaction is -1835 kJ.

<u>Explanation:</u>

Hess’s law of constant heat summation states that the amount of heat absorbed or evolved in a given chemical equation remains the same whether the process occurs in one step or several steps.

According to this law, the chemical equation is treated as ordinary algebraic expressions and can be added or subtracted to yield the required equation. This means that the enthalpy change of the overall reaction is equal to the sum of the enthalpy changes of the intermediate reactions.

The given chemical reaction follows:

P_4(g)+10Cl_2(g)\rightarrow 4PCl_5(s)      \Delta H^o_{rxn}=?

The intermediate balanced chemical reaction are:

(1) PCl_5(s)\rightarrow PCl_3(g)+Cl_2(g)    \Delta H_1=157kJ   ( × 4)

(2) P_4(g)+6Cl_2(g)\rightarrow 4PCl_3(g)     \Delta H_2=-1207kJ

The expression for enthalpy of the reaction follows:

\Delta H^o_{rxn}=[4\times (-\Delta H_1)]+[1\times \Delta H_2]

Putting values in above equation, we get:

\Delta H^o_{rxn}=[(4\times (-157))+(1\times (-1207))=-1835kJ

Hence, the \Delta H^o_{rxn} for the reaction is -1835 kJ.

6 0
3 years ago
What is the function of these organelles?
Vladimir [108]

Answer:

endoplasmic reticulum:

✔ helps in the production and movement of materials

Golgi body:

✔ packages and distributes materials in and out of cell

mitochondrion:

✔ supplies energy that the cell uses

ribosome:

✔ produces proteins for the cell

Explanation:

took test :D

5 0
3 years ago
Read 2 more answers
What is one reason scientists have developed a system to classify organisms?
Travka [436]

Answer:

c

Explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • Explain the result when aluminum is placed between the liquid and the wick
    9·1 answer
  • In certain conditions, the equilibrium concentrations for components in the reaction 2NOCl(g) 2NO(g) + Cl2(g) are [NO] = 0.02 M,
    9·1 answer
  • Calculate the number of atoms of copper represented by 127.08 g of copper. 1. 1.20 × 1024 atoms 2. 2.00 atoms 3. 1.30 × 1024 ato
    5·2 answers
  • How do the 5 branches of chemistry overlap?
    14·1 answer
  • Nuclear fusion combines nuclei to form:
    11·2 answers
  • The best thermometer to use where temperatures drop below -39°C (-38.2°F) is:_______.
    8·1 answer
  • Select the correct answer.
    8·1 answer
  • If lamp 1 is unscrewed from its holder, what will happen to lamp 2 and why?
    11·1 answer
  • Order these by size/complexity in descending order. (largest/most complex on top) Reorder answers
    12·1 answer
  • When does an object move<br><br>​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!