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
Sav [38]
3 years ago
15

Chemical A and Chemical B react in an exothermic reaction. What can be known about what will happen when Chemical A and Chemical

B are mixed together?
Please help. I'm confused.
Chemistry
1 answer:
Fynjy0 [20]3 years ago
8 0
In exothermic reactions, there is a release heat and the replacement of weak bonds with stronger ones.
You might be interested in
A system gains 652 kJ of heat, resulting in a change in internal energy of the system equal to +241 kJ. How much work is done?
levacccp [35]

Answer:

-411 kj

Explanation:

We solve by using this formula

∆U = ∆Q + ∆W

This formula is the first law of thermodynamics

Change in internal energy U = +241

Heat gained by system Q = 652

Putting the value into the equation

+241 = 652 + W

Workdone = 241 - 652

Workdone = -411 kj

Since work done is negative it means that work was done by the system

3 0
2 years ago
A solution is a homogeneous mixture of one or more solutes dissolved in a solvent. A specific volume of solvent is only able to
Rashid [163]
I just got this question; the answer is C: supersaturated. Hope this helps.
4 0
3 years ago
Read 2 more answers
24g of methane were burned in an excess of air. What mass of water would be produced in the reaction assuming complete combustio
expeople1 [14]

Answer:

54g of water

Explanation:

Based on the reaction, 1 mole of methane produce 2 moles of water.

To solve this question we must find the molar mass of methane in order to find the moles of methane added. With the moles of methane and the chemical equation we can find the moles of water produced and its mass:

<em>Molar mass CH₄:</em>

1C = 12g/mol*1

4H = 1g/mol*4

12g/mol + 4g/mol = 16g/mol

<em>Moles methane: </em>

24g CH₄ * (1mol / 16g) = 1.5 moles methane

<em>Moles water:</em>

1.5moles CH₄ * (2mol H₂O / 1mol CH₄) = 3.0moles H₂O

<em>Molar mass water:</em>

2H = 1g/mol*2

1O = 16g/mol*1

2g/mol + 16g/mol = 18g/mol

<em>Mass water:</em>

3.0moles H₂O * (18g / mol) =

<h3>54g of water</h3>
8 0
3 years ago
Which observation supports the claim that Earth's plates move?
Contact [7]

Answer:

B)Continents look like they fit together

4 0
2 years ago
1. Describe a procedure to separate a mixture of salt, sand, and water.
Brilliant_brown [7]
1.  A filter was used to separate the sand from the salt water solution (The process of decanting was used if a filer was not available).
2.  A Bunsen burner was used to boil away the water from the salt water solution leaving only salt.

I hope this helps.  Let me know if anything is unclear.
4 0
3 years ago
Other questions:
  • Why does the alcohol level in the thermometer rises or falls when you place it in water?
    7·1 answer
  • If you weigh 100 kg, how much would you weigh if all the water were removed from your body? A65 kg B45 kg C50 kg D35 kg
    9·1 answer
  • Which has a higher percentage of the diequatorial-substituted conformer compared with the diaxialsubstituted conformer: trans-1,
    15·1 answer
  • There are 100.0 grams of each reactant available determine the limiting reactant in this equation
    11·1 answer
  • What is the pH of a solution whose hydronium concentration is 3.5 x 10^(-3) M?<br><br> Thanks!
    10·1 answer
  • Use at least three complete sentences to explain how global wind patterns such as the prevailing westerlies in the northern hemi
    15·1 answer
  • Who had a good thanksgiving :D!!!
    15·2 answers
  • In the Energy and Specific Heat lab, how should the water bath be stabilized over the heat source? Select one:
    9·2 answers
  • Determine the mass of 2.75 moles of CaSO4. Record your work and your answer.
    10·1 answer
  • PLEASE HELP this is physical science.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!