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elena-s [515]
3 years ago
7

Help with my science

Chemistry
2 answers:
arsen [322]3 years ago
6 0
What’s the question or picture
Vlad1618 [11]3 years ago
3 0
I'd love to help, but you forgot to add the question.
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Which of the following phases of matter has a fixed shape and volume
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A matter in the solid phase has a fixed shape and volume.

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The smallest particle in any element is a compound. *
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false.

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the smallest particle of a element is an atom

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Which term describes this molecular shape?
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B.) Trigonal planar

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This molecule has 3 bonds and no lone pairs. The angles are all 120° and the bonds are within the same plane. These molecules have the molecular shape of trigonal planar.

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1 year ago
Que diferencia hay entre drogas estimuladoras depresoras y perturbadoras del sistema nervioso
12345 [234]

Answer:

Las drogas estimulantes son un grupo de medicamentos que tienen un efecto estimulante mental y físico en humanos y animales, estimulando y dando energía al paciente.  Ejemplos de psicoestimulantes son cafeína, efedrina, anfetaminas y metilfenidato.  Estos se usan en pequeñas dosis para, entre otras cosas, mejorar la atención del paciente y la capacidad de planificación, permitiendo un mayor y mejor rendimiento de la persona durante sus actividades diarias.

A su vez, un depresor es una sustancia que paraliza las funciones del sistema nervioso central, siendo las pastillas para dormir y los sedantes los depresores mas comunes. La acción de los sedantes se basa en su capacidad para activar los mediadores del sistema nervioso central, especialmente el ácido gamma-aminobutírico, causando en el paciente una sensación que puede ir desde la tranquilidad y relajación hasta un estado de somnolencia o incluso la propia inducción al sueño.

Por último, las drogas perturbadoras del sistema nervioso incluyen LSD, cannabis o la cocaína. Algunos efectos típicos son cambios en la visión y el oído, alucinaciones, confusión de sentidos, fuertes experiencias de belleza, disolución del yo y un sentido de unidad, experiencias religiosas y confrontaciones con el subconsciente. Este tipo de drogas son en su gran mayoría ilegales, y no forman parte de tratamientos médicos autorizados.

3 0
3 years ago
I answered a question correctly and someone deleted my answer without giving me any explanation. I don't know why someone would
lina2011 [118]

Answer:

Same, my answer got deleted. Its a troll on here who wants to screw around with people.

5 0
3 years ago
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