All categories

3 years ago

What's the name for when a solid changes right to a gas? What's the name for when a gas changes right into a solid?

1 answer:

7 0

If a solid changes right to a gas, it's called sublimation. If a gas changes directly to a solid, it's called deposition.

You might be interested in

I need help for my HW Assignment

marysya [2.9K]

- 402 has 3 sig figs.
- 0.00560 has 3 sig figs.
- 34.20 has 3 sig figs.
- 6546 has 4 sig figs.
- 45000 has 2 sig figs.

hope this helps :)

7 0

3 years ago

5. Which are forms of energy? Select all that apply.

slavikrds [6]

Answer:

There are mechanical energies. These consist of kinetic energy and gravitational potential energy.

Kinetic energy is the energy an object contains when it is in motion. Ex.: A car moving, a ball falling off of a building.

Gravitational potential energy is the potential for an object to do work at a certain height. If a 1 kg ball is placed 1 meter high, it has 9.8 Joules of potential energy, represented with the equation, Ug=mgh.

There are Non-Mechical Energies, which I assume you are trying to get. There is Thermal Energy, Electrical Energy, Light, Sound, Nuclear Energy, and Chemical Energy.

Thermal Energy is essentially heat. Friction causes thermal energy.

Electrical energy is potential difference. It is the work that can be done by a point charge.

Nuclear energy is like fission and fusion

Chemical energy is energy from chemical processses. Think, photosynthesis for example.

Sound is molecules hitting other molecules. It occurs a lot with friction as well.

Light is, well, you know what light is.

Explanation:

please let me know.. hope It helps you

please follow me for more information about anything

4 0

3 years ago

Darya [45]

Answer:

Explanation:

Hope it helps

#CarryOnLearning 

3 0

3 years ago

12 liters of ammonia (NH3) weighs how much at room temperature and pressure (293 K and 100 kPa)?

andriy [413]

Answer:

Option D) 8.5 grams

Explanation:

1) Data:

a) V = 12 liter

b) T = 293 K

c) p = 100 kPa

d) mass = ?

2) Formulae:

a) Ideal gas equation: pV = nRT

b) molar mass = mass in grams / number of moles

3) Solution:

a) Calculate the number of moles of ammonia, n:

pV = nRT ⇒ n = RT / (pV)

R = universal constant of gases = 8.3145 liter-kPa / mol-K

n = 100 kPa × 12 liter / (293 K × 8.3145 liter-kPa/mol-K) = 0.493 mol

b) Convert moles to grams:

Molar mass of NH₃ = 14.007 g/mol + 3×1.008 g/mol = 17.03 g/mol

mass = 0.493 mol × 17.03 g/mol = 8.4 g

Thus, the answer is the option D. 8.5 grams.

5 0

3 years ago

Which term best describes an animal that eats dead and decaying meat? A. predator B. producer C. decomposer D. scavenger

marta [7]

These types of animals are referred to as D. scavengers.

Scavenger animals are adapted to feed on dead and decaying meat and usually feed on the carcasses left over by predatory animals. An example is how vultures pick off the meat from a zebra carcass that has been left over after a lion pack has finished eating from it.

8 0

4 years ago

Read 2 more answers