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
MrMuchimi
3 years ago
7

What happens immedialety happens before a volcano erupts?

Chemistry
1 answer:
Fed [463]3 years ago
7 0
The correct answer is C) Expanding gases push magma through the pipe. The mantle is already made of magma, the magma cools when the volcano has already erupted, and the temperature does not decrease in the chamber.
You might be interested in
Quick question: Are water molecules attracted to each other because of the polar nature of water?
Colt1911 [192]

Answer:

Because the opposite charge between them

Explanation:

4 0
2 years ago
A science student wants to use distillation to separate a mixture of two
statuscvo [17]

Answer:

Boiling point

Explanation:

Distillation is one of the most widely used separation technique in chemistry. It is used to separate a mixture of liquid substances with different boiling point. Hence, the basis of the separation is BOILING POINT DIFFERENCE.

In the procedure, the liquid substances are heated until they turn gaseous, which they do at different times considering their different boiling points. The separated components are then converted back to liquid states in a process called CONDENSATION.

6 0
3 years ago
A 80.0 g piece of metal at 88.0°C is placed in 125 g of water at 20.0°C contained in a calorimeter. The metal and water come to
grandymaker [24]

Answer:

The specific heat of the metal is 0.485 J/g°C

Explanation:

<u>Step 1:</u> Data given

Mass of the piece of metal = 80.0 grams

Mass of the water = 125 grams

Initial temperature of the metal = 88.0 °C

Initial temperature of water =20.0 °C

Final temperature = 24.7 °C

pecific heat of water is 4.18 J/g*°C

<u>Step 2:</u> Calculate specific heat of the metal

Qgained = -Qlost

Q =m*c*ΔT

Qwater = - Qmetal

m(water)*c(water)*ΔT(water) = -m(metal)*c(metal)*ΔT(metal)

with mass of water = 125 grams

with c( water) = 4.18 J/g°C

with ΔT(water) = T2-T1 = 24.7 - 20 = 4.7°C

with mass of metal = 80.0 grams

with c(metal) = TO BE DETERMINED

with ΔT(metal) = 24.7 - 88.0 = -63.3 °C

125*4.18*4.7 = -80 * C(metal) * -63.3

2455.75 = -80 * C(metal) * -63.3

C(metal) = 2455.75 / (-80*-63.3)

C(metal) = 0.485 J/g°C

The specific heat of the metal is 0.485 J/g°C

3 0
3 years ago
Other than a tornado/hurricane identify a situation in which u would wrather know the velocity than the speed.please explain in
34kurt
A tsunami.Because tsunamis are unpredictable in a way, a body of water that is very vast can cause an uprising of water. As for instance, if I lived in Hawaii, and their was a tsunami coming forth from each side, it would be a problem.
7 0
2 years ago
Si se adiciona etilenglicol (compuesto no volátil) a agua destilada:
poizon [28]

Answer:

Hey hi

Explanation:

Can you pls tell me which language is this pls I really want to help you... Sorry

6 0
3 years ago
Other questions:
  • The following reaction shows the process of rusting. 4Fe + 3O2= 2Fe2O3 This chemical reaction should be classified as _____.
    11·2 answers
  • Describe three devices used in radiation detection
    9·1 answer
  • Which of these is an acid?
    9·1 answer
  • An atom of 125Sn has a mass of 124.907785 amu. Calculate the binding energy in MeV per atom. Use the masses: mass of 1H atom = 1
    12·1 answer
  • A room with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. The molar mass of oxygen is 32
    14·1 answer
  • A sample of helium gas has a volume of 2.0 L at a pressure of 4.0 atm. What is the volume of gas at 380 mmHg
    14·1 answer
  • A balloon with a volume of 2.0 L is filled with a gas at 3 atmospheres. If the pressure is reduced to 0.5 atmospheres without a
    8·1 answer
  • How many grams of hydrogen has will be produced from the reaction of zinc metal with 85 grams of hydrochloric acid?
    13·1 answer
  • Which is an example of a constructive force?
    9·2 answers
  • Q5. Why are some salts acidic when others are neutral?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!