CHEMISTRY MIDDLE SCHOOL

What type of reaction does the following equation represent?FeS+2HCl→FeCl2+H2S
A. synthesis reaction
B. double-displacement reaction
C. single-displacement reaction
D. decomposition reaction

Answers

Answer 1
Answer:

Answer:

B. double-replacement RXN

Explanation:

more specifically, this is a precipitation rxn.
Answer 2
Answer: Double-displacement because two elements are getting exchanged by the compounds. It is also a precipitation reaction because there seems to be an insoluble aqueous product.

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What happens during erosion?

Answers

During erosion, weathered rock is moved from one place to another. Erosion can dissolve rock or can weaken it.
During erosion, the wind washes the soil away, causing the ground to spilt apart.

Hope i helped.

How to find wavelength

Answers

Know the formula for calculating wavelength. To find the wavelength of a wave, you just have to divide the wave's speed by its frequency. ...State the formula in correct units. ...Plug the known quantities in the equation. ...Solve.

Answer:

Use the formula v=fλ Divide the velocity by the frequency to find the wavelength. (Make sure you add the unit λ for your final answer)

V: Velocity

F: Frequency

λ: Wavelength

Which of the following descriptionsbest describes a solid substance?
A. The volume of the substance depends on the
container it is in.
B. Volume of the substance changes depending on its
location.
C. The shape of the substance changes often.
D. The shape of the substance is fixed and volume is
constant.

Answers

Answer:

D

Explanation:

depending on the solid the shape will not change.

Is biting an apple a physical or chemical change?

Answers

It would be physical because you are not using chemicals to make this change happen you r taking a bite out if the apple which is causing it to be a physical reaction
the answer is Physical because you are taking a bite out of the apple

how many neutrons are in the nucleus of an atom that has an atomic mass of 36 and an atomic number of 25​

Answers

Answer:

11neutrons

Explanation:

neutronnumber=Massnumber-Atomic number

givenmassnumber =36

atomicnumber=25

neutron number=36-25

neutron number=11

How would you describe the change in the arrangement of particles as heat energy and temperature increase?

Answers

The change in the arrangement of particles as heat energy and temperature increase because of the increase in the kinetic energy of the particles.

How kinetic energy calculated?

Kinetic energy of any atom is calculated as:

K.E. = 1/2(mv²), where

v = velocity and m = mass

So, when we apply heat energy or increase the temperature of any system then the energy of the constitute particles is also increases which results in the increase of the average kinetic energy of the particle. Due to this kinetic energy particle will move with high velocity and disturbs the arrangement of the system.

Hence, due to increase in average kinetic energy, arrangement of the particles changes.

To know more about kinetic energy, visit the below link:

brainly.com/question/8101588

Answer:

there is more energy added as heat rises

Explanation:
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