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
ZanzabumX [31]
3 years ago
7

A reaction that is spontaneous can be described as

Chemistry
1 answer:
sveticcg [70]3 years ago
7 0

Answer:

(A) proceeding without external influence once it has begun.

Explanation:

<em>A reaction that is spontaneous can be described as</em>

<em>(A) proceeding without external influence once it has begun.</em> TRUE. A spontaneous reaction has a tendency to proceed in the way it has begun. It is spontaneous when Gibbs free energy is negative.

<em>(B) releasing heat to the surroundings.</em> FALSE. If the reaction is exothermic (enthalpy negative), one still has to take into account the effect of the entropy on Gibbs free energy.

<em>(C) proceeding in both the forward and reverse directions.</em> FALSE. This just means that the reaction is reversible.

<em>(D) increasing in disorder.</em> FALSE. This means that entropy increases but it is still necessary to take into account the effect of enthalpy on Gibbs free energy.

<em>(E) having the same rate in both the forward and reverse directions.</em> FALSE. This is related to the kinetics but not the spontaneity.

You might be interested in
Which wave has a disturbance that is perpendicular to the wave motion?
RideAnS [48]

transverse wave

A transverse wave is a wave in which particles of the medium move in a direction perpendicular to the direction that the wave moves.

3 0
2 years ago
Whose cell walls may contain cellulose can be plantlike, animal like or fungus
lapo4ka [179]

Answer:

I'm not sure

Explanation:

sorry wish that I did tho

8 0
3 years ago
4. The picture shows a full moon.
Anuta_ua [19.1K]

Answer:

A full moon occurs when the Moon appears as a complete circle in the sky.

Explanation:

- We see it as a full orb because the whole of the side of the Moon facing the Earth is lit up by the Sun's rays.

- The moon shows no visible light of its own, so we only see the parts of the moon that are lit up by other objects.

6 0
2 years ago
Read 2 more answers
Write the balanced chemical equation between H2SO4 and KOH in aqueous solution. This is called a neutralization reaction and wil
emmainna [20.7K]

Answer:

0.166M

Explanation:

In a neutralization, the acid, H₂SO₄, reacts with a base, KOH, to produce a salt, K₂SO₄ and water. The reaction is:

H₂SO₄ + 2KOH → K₂SO₄ + 2H₂O

To solve this problem, we need to determine moles of H2SO4 and moles of KOH that reacts to find the moles of sulfuric acid that remains after the reaction:

<em>Moles H2SO4:</em>

0.650L * (0.430mol /L) = 0.2795moles H2SO4

<em>Moles KOH:</em>

0.600L * (0.240mol / L) = 0.144 moles KOH

Moles of sulfuric acid that reacts with 0.144 moles of KOH are:

0.144 moles KOH * (1mol H2SO4 / 2 mol KOH) = 0.072 moles of H2SO4 react.

And remain:

0.2795moles H2SO4 - 0.072moles H2SO4 = 0.2075 moles of H2SO4 reamains.

In 0.650L + 0.600L = 1.25L:

Molar concentration of sulfuric acid:

0.2075 moles of H2SO4 / 1.25L =

<h3>0.166M</h3>
7 0
2 years ago
An antacid tablet contains 640.0 mg of magnesium oxide per tablet.
Salsk061 [2.6K]

Answer:

317.6 mL

Explanation:

Step 1: Write the balanced neutralization equation

MgO + 2 HCl ⇒ MgCl₂ + H₂O

Step 2: Calculate the mass corresponding to 640.0 mg of MgO

The molar mass of MgO is 40.30 g/mol. The moles corresponding to 640.0 mg (0.6400 g) of MgO are:

0.6400 g × (1 mol/40.30 g) = 0.01588 mol

Step 3: Calculate the moles of HCl that react with 0.01588 moles of MgO

The molar ratio of MgO to HCl is 1:2. The moles of HCl are 2/1 × 0.01588 mol = 0.03176 mol

Step 4: Calculate the volume of 0.1000 M HCl that contains 0.03176 moles

0.03176 mol × (1 L/0.1000 mol) = 0.3176 L = 317.6 mL

3 0
3 years ago
Other questions:
  • Describe some characteristics of a prokaryotic cell
    8·2 answers
  • Which element could scratch iron?
    7·2 answers
  • PLEASE HELP, WILL GIVE BRAINLIEST!
    13·1 answer
  • 16. A particular organ in the human
    11·1 answer
  • Ice will ________ in water.<br> A. float<br> B. sink<br> C. stay the same
    7·2 answers
  • How is life on Earth affected by Earth's revolution around the Sun
    8·1 answer
  • A sample of Strontium-90 is found to have decayed to one-fourth of its original amount after 58.2 years. What is the half-life o
    8·2 answers
  • Calculate the number of moles in 24.18 liters of neon gas at STP.
    7·1 answer
  • Balance the equations (5pts each) and answer the posed question (5pts each)
    10·1 answer
  • Why would a doctor most likely restrict a patient's contact with other people while the patient receives internal radiation?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!