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
Juliette [100K]
3 years ago
8

A heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is a____. it for science class

Chemistry
1 answer:
Shkiper50 [21]3 years ago
8 0
The heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is colloid. Because colloid has particles that are small enough to suspended but are as large that they can scatter light.
You might be interested in
Which of the following is a quantitative observation of the frog?
Nataliya [291]
Quantitative means to count how many of something. The correct answer is B, It has two eyes. Hope this helps
6 0
3 years ago
Read 2 more answers
1: At which temperature would a reaction withΔH = -102 kJ/mol, ΔS = -0.188 kJ/(mol×K) be spontaneous? 2: At which temperature wo
Naddik [55]

Answer:

1: At temperatures below 542.55 K

2: At temperatures above 660 K

Explanation:

Hello there!

In this case, according to the thermodynamic definition of the Gibbs free energy, it is possible to write the following expression:

\Delta G=\Delta H-T\Delta S

Whereas ΔG=0 for the spontaneous transition. In such a way, we proceed as follows:

1:

0=\Delta H-T\Delta S\\\\T=\frac{-102kJ/mol}{-0.188kJ/mol-K} \\\\T=542.55K

It means that at temperatures lower than 542.55 K the reaction will be spontaneous.

2:

0=\Delta H-T\Delta S\\\\T=\frac{132kJ/mol}{0.200kJ/mol-K} \\\\T=660K

It means that at temperatures higher than 660 K the reaction will be spontaneous.

Best regards!

7 0
3 years ago
When iron metal reacts with oxygen, the reaction can form Fe2O3. Write a balanced chemical equation for this reaction, and find
ryzh [129]
The balanced equation is 
4Fe+3O₂⇒2Fe₂O₃

We know that the mole of Fe₂O₃ is 6, and since the ratio between oxygen and <span>Fe₂O₃ is 3:2, we can see that

3:2 = x:6 (3 oxygen moles can make 2 </span>Fe₂O₃ moles = x oxygen moles can make 6 <span>Fe₂O₃ moles)
</span><span>
Multiply outside and inside (3*6 , 2*x) and put them on opposing sides of the equation

2*x = 3*6
2x=18
x=9
Therefore 9 moles of oxygen is needed.

</span>
6 0
3 years ago
Read 2 more answers
Could someone help me balance this chemical equation please
Softa [21]
Balanced equation:
Ca(OH)2+H2SO4=CaSO4+2 H20<span />
4 0
3 years ago
What is the coefficient in front of the O₂ when the equation below is balanced C₂H₆O₂(g) + O₂ (g) → CO₂(g) + H₂O (g)
Maslowich

Answer:

5

Explanation:

Balance the equation in order of C,H,O and then you should be able to find the coefficient

5 0
3 years ago
Other questions:
  • An evaporation–crystallization process of the type described in Example 4.5-2 is used to obtain solid potassium sulfate from an
    14·1 answer
  • Select the correct answer.
    14·1 answer
  • Is hydrogen a molecule or compound
    12·1 answer
  • One way to limit deforestation is by
    15·2 answers
  • Calcium hypochlorite (ca(ocl)2, mw = 142.983 g/mol) is often used as the source of the hypochlorite ion (ocl–, mw = 51.452 g/mol
    13·1 answer
  • When the equation Sn + HNO₃ → SnO₂ + NO₂ + H₂O is balanced in acidic solution, what is the smallest whole-number coefficient for
    11·1 answer
  • Which best defines a service? a task that is performed in exchange for payment an object that is acquired a plan that is execute
    13·2 answers
  • Helpppp me plzzzzzzzzzzzzzzzzzzzzz
    11·1 answer
  • The graph shows the speed of a car
    7·1 answer
  • Determining what it is you want to know:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!