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leonid [27]
3 years ago
14

In general, non-spontaneous reactions __________.

Chemistry
1 answer:
Rom4ik [11]3 years ago
3 0
Very low gives free energy
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Is the following equation balanced? SO3 + 2H2O H2SO4 no yes
postnew [5]

Answer: No

Explanation: It's not balanced because four oxygen atoms in H2SO4,  whereas there are 5 oxygen atoms in the reactants side. Also, there's more hydrogen atoms on the reactants side.

I hope this helps!

7 0
3 years ago
What does each row (across) have in common?
Nastasia [14]
Row or periods have in common is the valence electron count. The valence electron count goes up as you move across the periodic table. Also atomic size gets smaller as you move from left to right
3 0
2 years ago
Barbiturates are synthetic drugs used as sedatives and hypnotics. Barbital ( = 184.2 g/mol) is one of the simplest of these drug
DanielleElmas [232]

Answer:

118.75°C is the boiling point of a solution.

Explanation:

Mass of the solute that is barbiturates = 42.5 g

Molar mass of a solute = 184.2 g/mol

Moles of solute = \frac{42.5 g}{184.2 g/mol}=0.2307 mol

Mass of the solvent that acetic acid = 825 g = 0.825 kg

molality=\frac{\text{Moles of solute}}{\text{Mass of solvent}}

Molality of the solution (m):

m=\frac{0.2307 mol}{0.825 kg}=0.2796 m

Elevation in boiling point is given as:

\Delta T_b=i\times K_b\times m

i = 1 (organic compound)

=1\times 3.07^oC/m\times 0.2796 m=0.8585^oC

\Delta T_b=T_b-T

T_b = Boiling temperature of solution.

T = boiling temperature of solvent that is acetic acid=117.9°C

0.8585^oC=T_b-117.9^oC

T_b=118.75 ^oC

118.75°C is the boiling point of a solution.

6 0
3 years ago
Consider this reaction: 3Fe2O3(s) + CO(g) → 2Fe3O4(s) + CO2(g).
telo118 [61]
The rate<span> of a </span>reaction increases<span> if the temperature is increased, the concentration of a dissolved reactant is increased and the pressure of a </span>reacting<span> gas is increased. Hope this answers the question. Have a nice day. Feel free to ask more questions.</span>
4 0
3 years ago
Read 2 more answers
Lecture 19 Equilibrium II Worksheet 1)The equilibrium constant, K c , is 9.8 x 10 5 for H 2 (g) + S (s) H 2 S (g). a.Find the re
Strike441 [17]

Answer:

a) Qc = 0.6338

b) Qc < Kc ⇒ the reaction proceeds to the right, towards the products.

Explanation:

  • H2(g) + S(s) ↔ H2S(g)

∴ Kc = 9.8 E5 = [H2S] / [H2]

a) reaction quotient, Q:

∴ Qc = [H2S] / [H2] = (0.483 M)/(0.762 M) = 0.6338

b) the process is not established equilibrium: Qc < Kc

⇒ The reaction evolves to the right, towards the products

6 0
3 years ago
Read 2 more answers
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