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
marshall27 [118]
3 years ago
12

What type of stress results when two plates push against one another?

Chemistry
1 answer:
Natasha2012 [34]3 years ago
3 0

When two plates push against each other shear stress will happem because they move in opposite directions. In this case the force of the stress pushes some of the crust in different directions. When this happens, a large part of the crust can break off, which makes the plate size smaller.

You might be interested in
How many formula units of silver fluoride, AgF, are equal to 42.15 g of this substance?
4vir4ik [10]

2.05 × 10²³ formula units

Given data:Mass of AgF =  43.15 gNumber of formula units = ?Solution:Number of moles of AgF:Number of moles = mass/ molar massNumber of moles = 43.15 g/ 126.87 g/molNumber of moles = 0.34 molNow Number of formula units will be determine by using Avogadro number.It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.The number 6.022 × 10²³ is called Avogadro number1 mole = 6.022 × 10²³ formula units0.34 mol × 6.022 × 10²³ formula units2.05 × 10²³ formula units

3 0
2 years ago
Using the equations
Anna [14]

Considering the Hess's Law, the enthalpy change for the reaction is 221.8 kJ/mol.

Hess's Law indicates that the enthalpy change in a chemical reaction will be the same whether it occurs in a single stage or in several stages. That is, the sum of the ∆H of each stage of the reaction will give us a value equal to the ∆H of the reaction when it occurs in a single stage.

In this case you want to calculate the enthalpy change of:

C₂H₄ (g) + 6 F₂ (g) → 2 CF₄ (g) + 4 HF (g)

which occurs in three stages.

You know the following reactions, with their corresponding enthalpies:

Equation 1: H₂ (g) + F₂ (g) → 2 HF (g)     ∆H° = -79.2 kJ/mol

Equation 2: C (s) + 2 F₂ (g) → CF₄ (g)     ∆H° = 141.3 kJ/mol

Equation 3: 2 C(s) + 2 H₂ (g) → C₂H₄ (g)     ∆H° = -97.6 kJ/mol

Because of the way formation reactions are defined, any chemical reaction can be written as a combination of formation reactions, some going forward and some going back.

<h3 /><h3>FIRST STEP</h3>

First, to obtain the enthalpy of the desired chemical reaction you need one mole of C₂H₄ (g) on reactant side and it is present in first equation. Since this equation has one mole of C₂H₄ (g) on the product side, it is necessary to locate it on the reactant side (invert it).

When an equation is inverted, the sign of ΔH° also changes.

<h3>SECOND STEP</h3>

Now, you need 2 moles of CF₄ (g) on the product side. The second equation has 1 mole of CF₄ (g) on the product side, so it is necessary to multiply it by 2 to obtain 2 moles of CF₄ (g).

Since enthalpy is an extensive property, that is, it depends on the amount of matter present, since the equation is multiply by 2, the variation of enthalpy also.

<h3>THIRD STEP</h3>

Finally, you need 4 moles of  HF (g) on the product side. The first equation has 2 moles of  HF (g) on the product side, so it is necessary to multiply it by 2 to obtain 4 moles of the compound.

Since the equation is multiply by 2, the variation of enthalpy also is multiplied by 2.

<h3>SUMMARY</h3>

In summary, you know that three equations with their corresponding enthalpies are:

Equation 1: 2 H₂ (g) + 2 F₂ (g) → 4 HF (g)     ∆H° = -158.4 kJ/mol

Equation 2: 2 C (s) + 4 F₂ (g) → 2 CF₄ (g)     ∆H° = 282.6 kJ/mol

Equation 3: C₂H₄ (g) → 2 C(s) + 2 H₂ (g)     ∆H° = 97.6 kJ/mol

Adding or canceling the reactants and products as appropriate, and adding the enthalpies algebraically, you obtain:

C₂H₄ (g) + 6 F₂ (g) → 2 CF₄ (g) + 4 HF (g)     ΔH°= 221.8 kJ/mol

Finally, the enthalpy change for the reaction is 221.8 kJ/mol.

Learn more about molar enthalpy:

  • <u>brainly.com/question/5976752?referrer=searchResults </u>
  • <u>brainly.com/question/13707449?referrer=searchResults </u>
  • <u>brainly.com/question/13707449?referrer=searchResults </u>
  • <u>brainly.com/question/6263007?referrer=searchResults </u>
  • <u>brainly.com/question/14641878?referrer=searchResults </u>
  • <u>brainly.com/question/2912965?referrer=searchResults</u>
7 0
2 years ago
Which of the following are drugs that are important sources of toxicity because of their wide availability, otc status, and unin
Tom [10]
The correct answer is A. Analgesic are used to treat all forms of pain and because of their wide availability people buy them without proscription. This leads to a lot of undesirable side effects.
8 0
3 years ago
When does a double replacement reaction occur
lions [1.4K]

Answer:

u should call me justin bc I was just in your mom

6 0
3 years ago
Read 2 more answers
NEED HELP FAST
andre [41]

Answer: im not writting a pharaphraph. Buuuuuuuuuuuut... explian the type of reaction then explanie how that type of reaction works.

Explanation:

6 0
2 years ago
Read 2 more answers
Other questions:
  • if oxygen gas is collected over water at 23.5°c and 750.0 mm Hg, what is the pressure of the gas collected?
    8·1 answer
  • What is the mass of an object with a volume of 120mL and density of 0.75g/mL?
    15·2 answers
  • A student collected the above data for this experiment. What error did he make? Explain.
    7·2 answers
  • Why is the wave energy lower when it reaches the receiver? (Hint: think about what you know about visible light.)
    5·2 answers
  • A chemist prepares a solution of barium chlorate by measuring out of barium chlorate into a volumetric flask and filling the fla
    10·1 answer
  • Two students pull a box with force of 100 N to the left and 200 N to the right.
    6·1 answer
  • Multiple choice:
    11·1 answer
  • What is NOT true about white light?
    6·2 answers
  • when chlorine is added to acetylene tetrachloroethane is formed How many grams of tetrachloroethane are ade if 15 liters of chlo
    7·1 answer
  • What are the most abundant metal in the earths crust from 1 to 10​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!