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ivann1987 [24]
3 years ago
14

Please help me with this question !!!

Chemistry
1 answer:
Art [367]3 years ago
4 0

Density of the vinegar is higher than the density of the oil.

Explanation:

Density of the vinegar is higher than the density of the oil. The consequence of this is that the oil will be the top layer in the pitcher while the vinegar is at the bottom layer in the pitcher.

When mixing oil and vinegar will not produce a mixture because the oil contains non-polar molecules while vinegar is a solution of acetic acid in water and both of them are polar molecules.

Learn more about:

liquids with different densities

brainly.com/question/9490207

#learnwithBrainly

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A student is asked to identify an element that contains 2 valence electrons and is inert (stable). At which location in this per
krek1111 [17]

Answer:

i think the answer is helium (top right in periodic table)

6 0
3 years ago
Determine whether the following statements describe chemical or physical properties: (a) Oxygen gas supports combustion. (b) Fer
sdas [7]

Explanation:

A change that does not cause any change in chemical composition of a substance is known as a physical change.

For example, mass, density, volume etc are all physical changes.

On the other hand, a change that brings change in chemical composition of a substance is known as chemical change.

For example, combustion, toxicity, reactivity etc are all chemical changes.

Hence, following statements are identified as chemical or physical changes as follows.

(a) Oxygen gas supports combustion : Chemical change

(b) Fertilizers help to increase agricultural production : Chemical change

(c) Water boils below 100^{o}C on top of a mountain : Physical change

(d) Lead is denser than aluminum : Physical change

(e) Uranium is a radioactive element : Chemical change

7 0
3 years ago
Glade air freshener gel “disappearing” is an example of
netineya [11]

Answer:

Vaporization

Explanation:

Vaporization is the change of a specie to the gaseous state. To 'disappear' in this case simply means to change to the gaseous state.

Substances with high vapour pressure tend to be easily converted to vapour phase. Hence if Glade air freshener gel 'disappears' easily, then it has a high vapour pressure and is easily converted to vapour (gas).

8 0
3 years ago
A substance conducts electricity because of free moving, charged particles.
Galina-37 [17]

Answer:

105Comprendes las leyes de la electricidadAprende másClasificación de los materialesUn medio o material que permite el movimiento de las cargas eléctricas (electrones) en respuesta a una fuerza eléctrica, se denomina conductor. Los materiales conductores son los que se pueden electrizar en toda su superficie, debido a que los electrones se mueven libremente. Los metales por lo general son buenos conductores de la electricidad.El flujo de las partículas cargadas es lo que se conoce como corriente eléctrica. Las partículas cargadas en una cierta dirección de un conductor chocan con los átomos, produciendo una pérdida de energía que se manifiesta en forma de calor.Una medida de oposición que presentan las partículas cargadas al moverse libre-mente en una cierta dirección de un material conductor es lo que se conoce como resistencia eléctrica.Los materiales que no permiten que las partículas cargadas se muevan hacia otra región del material a una fuerza eléctrica, son llamados aislantespor ejemplo, la madera.Existen otros tipos de materiales cuyas propiedades son intermedias entre los conductores y aislantes; se llaman semiconductores.Algunos ejemplos de materiales con estas características son:

Explanation:

6 0
3 years ago
How is the 2s orbital different than the 1s orbital? (Choose all that apply)
Irina-Kira [14]

The 2s orbital different than the 1s orbital because the 2s orbital extends farther from the nucleus than the 1s.

As we move away from the nucleus, the values of the principal quantum number (n) continues to increase.

As the principal quantum number (n) increases, the orbital becomes farther away from the nucleus.

The higher energy orbital are always larger than the orbitals closer to the nucleus.

Hence, the 2s orbital different than the 1s orbital because the 2s orbital extends farther from the nucleus than the 1s.

Learn more: brainly.com/question/1869903

4 0
2 years ago
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