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
mart [117]
3 years ago
9

10

Chemistry
1 answer:
kompoz [17]3 years ago
4 0

Answer:

10-10 above the 0 is positive and the ones below is - (negitive)

Explanation:

You might be interested in
When the rate of the forward reaction equals the rate of the backward reaction, the system is said to be in (2 points)
GenaCL600 [577]

Answer:

I believe b, dynamic equilibrium

Explanation:

3 0
2 years ago
Read 2 more answers
If element A has an ionic charge of +2 and element B has an ionic charge of -3, what will be the formula for the compound create
Softa [21]
A3B2 because the oxidation numbers are the same as ionic charge just switch symbol and number. Then use the cross cross method and you get A3B2.
8 0
3 years ago
For the reaction at 298 K, 2NO2(g) N2O4(g) the values of ΔH° and ΔS° are -58.03 kJ and -176.6 J/K, respectively. Calculate the v
Ierofanga [76]

Answer:

\Delta G^o=-5.4032 kJ

The temperature for \Delta G^o=0[/tex is [tex]T=328.6 K

Explanation:

The three thermodinamic properties (enthalpy, entropy and Gibbs's energy) are linked in the following formula:

\Delta G^o=\Delta H^o + T*\Delta S^o

Where:

\Delta G^o is Gibbs's energy in kJ

\Delta H^o is the enthalpy in kJ

\Delta S^o is the entropy in kJ/K

T is the temperature in K

Solving:

\Delta G^o=-58.03 kJ - 298K*-0.1766 kJ/K

\Delta G^o=-5.4032 kJ

For \Delta G^o=0:

0=\Delta H^o - T*\Delta S^o

\Delta H^o= T*\Delta S^o

T=\frac{\Delta H^o}{\Delta S^o}

T=\frac{-58.03 kJ}{-0.1766 kJ/K}

T=328.6 K

3 0
3 years ago
Read 2 more answers
A 9.79 mol sample of freon gas was placed in a balloon. Adding 3.50 mol of freon gas to the balloon increased its volume to 21.8
aivan3 [116]

Answer:

16.06 L was the initial volume of the balloon.

Explanation:

Initial moles of freon in ballon = n_1=9.79 mol

Initial volume of freon gas in ballon = V_1=?

Moles of freon gas added in the balloon = n = 3.50 mole

Final moles of freon in ballon = n_2=n_1+n=9.79 mol+3.50 mol=13.29 mol

Final volume of freon gas in ballon = V_2=21.8 L

Using Avogadro's law:

\frac{V_1}{n_1}=\frac{V_2}{n_2} ( at constant pressure and temperature)

V_1=\frac{V_2\times n_1}{n_2}=\frac{21.8 L\times 9.79 mol}{13.29 mol}=16.06L

16.06 L was the initial volume of the balloon.

4 0
3 years ago
Which of the following is an endothermic reaction?
telo118 [61]
The answer is the reaction ins a cold pack
5 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the following thermochemical equations.
    7·1 answer
  • 3% Hydrogen Peroxide has an oral LD50 of 900 mg/kg. Acetic Acid has an oral LD50 of 3310 mg/kg. Which one is more hazardous to c
    9·1 answer
  • For a science experiment, a student rubs a mineral against a porcelain plate. The students has just performed
    12·2 answers
  • SO3 (g) + H2O (l) ------> H2SO4 (l)
    14·1 answer
  • A 10.0 mL sample of 0.75 M CH3CH2COOH(aq) is titrated with 0.30 M NaOH(aq) (adding NaOH to CH3CH2COOH). Determine which region o
    15·1 answer
  • What is the symbol for the change in enthalpy?
    15·1 answer
  • Indicate whether each statement is true or false: a. Substitutional alloys tend to be more ductile than interstitial alloys. b.
    10·1 answer
  • What is the molality of a solution of naphthalene dissolved in chloroform if the solution has a freezing point of -64.7 °C? ​
    12·1 answer
  • How many mL are in a cube that is 4 cm on every side?
    7·1 answer
  • Environmental Effects Summary
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!