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Assessment

Quiz

Chemistry

6th - 8th Grade

Practice Problem

Hard

Created by

Julieta Gonzalez

Used 1+ times

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Personaje que descubre las cargas negativas y propone el modelo mejor conocido como "budín de pasas"

Dalton

Thomson

Rutherford

Bohr

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Que información nos proporciona el número atómico?

El número de electrones y protones

El número de neutrones

La masa atómica

El radio atómico

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Es la masa menos el número atómico

Cantidad de protones

Cantidad de neutrones

Cantidad de electrones

Tamaño del átomo

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Los protones se encuentran en el ________ y tienen carga __________

Orbital- negativa

Núcleo -positiva

Orbital-positiva

Núcleo-negativo

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Se dice que una sustancia es neutra si tiene pH de:

4

5

7

3

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Si una sustancia tiene un valor de pH igual a 13 es

Ácido

Base

Neutra

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

¿Cuál es la carga de los electrones?

Positiva

Neutra

Negativa

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