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
Setler79 [48]
3 years ago
13

Which of the following would be a good use for a nonmetal? A.handle of frying pan

Chemistry
1 answer:
kotegsom [21]3 years ago
4 0
I think it could be letter B

You might be interested in
Discuss the changes of heated copper sulfate crystals and its reaction upon the addition of water. Write the reaction equation​
Arturiano [62]

Explanation:

If copper sulphate crystals are added to water then, the particles of copper sulphate crystals loses attraction between them and starts moving continuously and gets mixed up with water. It is called 'hydrated copper sulphate solution which is having a blue colour.

3 0
3 years ago
Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first step in its synthesis is th
kolbaska11 [484]

Answer: When using 645 L /s  of O2 in a temperature and pressure of  195°C,  0.88 atm  respectively, we will get 0.355Kg /s NO

Explanation:

  • First we review the equation that represents the oxidation process of the NH3 to NO.

4NH3(g) + 5O2(g) ⟶4 NO(g) +6 H2O(l)  

  • Second we gather the information what we are going to use in our calculations.

O2 Volume Rate = 645 L /s

Pressure = 0.88 atm

Temperature = 195°C + 273 = 468K

NO molecular weight = 30.01 g/mol  

  • Third, in order to calculate the amount of  NO moles produced by 645L/ s of O2, we must find out, how many moles (n) are 645L O2 by using the general gas equation PV =n RT

Let´s keep in mind that using this equation our constant R is 0.08205Lxatm/Kxmol

PV =n RT

n= PV / RT

n= [ 0.88atm x 645L/s] / [ (0.08205 Lxatm/Kxmol) x 468K]

n= 14.781 moles /s of O2

  • Fourth, now by knowing the amount of moles of O2, we can use the equation to calculate how many moles of NO will be produced and then with the molecular weight, we will finally know the total mass per second .

14.781 moles /s of O2 x 4moles NO / 5 moles O2 x  30.01g NO / 1 mol NO x 1Kg NO /1000g NO = 0.355Kg /s NO

6 0
3 years ago
A Questic
Ivanshal [37]

Answer:

No, it is not feasible because the Gibbs free energy change is positive

Explanation:

∆Hreaction= (-602 KJ/mol) - (-348 KJ/mol) = -254 KJ/mol

∆Sreaction = (42 + 27) J/Kmol - (33 + 44) J/K = -8J/Kmol

From;

∆G = ∆H - T∆S

∆G = 254 × 10^3 J/mol - [340K × (-8 J/Kmol)]

∆G = 2.57 × 10^5 J/mol

Note that when the change in free energy is positive, a reaction is non spontaneous. Only a reaction that has a negative change in free energy is spontaneous.

3 0
3 years ago
Doctors sometimes use computer models to track the spread of an infectious disease . How might this help them better understand
kotegsom [21]
It could them know how it start when it started wats in the infectious disease and why
7 0
3 years ago
Which type of solution below has a cloudy appearance? (Choose all that apply)
Gelneren [198K]
B. Suspensions is the answer
8 0
3 years ago
Other questions:
  • Why is it important to have a controlled experiment
    15·2 answers
  • Which mixture can be separated based on differences in particle size of the components?
    6·1 answer
  • 99 points
    9·2 answers
  • Which element or elements are unbalanced in this equation?
    7·1 answer
  • Which of the following are heterotrophs?
    8·1 answer
  • The “bends” is a medical condition that results from N2 dissolving in the blood when
    12·1 answer
  • When a chemical reaction destroys a solid
    7·1 answer
  • What is the percent by mass of oxygen in fe2o3
    7·2 answers
  • 4. Rank the listed elements from largest electronegativity at the top, to smallest electronegativity at
    10·1 answer
  • .ASAPPP
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!