
Balancing Chemical Reactions
Authored by STEVE LOPEZ
Chemistry
9th - 12th Grade
NGSS covered
Used 184+ times

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13 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
During a chemical reaction, atoms ______.
Durante una reacción química, los átomos ______.
are created / son creados
are destroyed / son destruidos
are rearranged / se reorganizan
are lost / se pierden
Tags
NGSS.MS-PS1-5
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Identify the product(s) in the following chemical reaction:
Identifica el/los producto/s en la siguiente reacción química:
Chromium oxide + Carbon → Chromium + Carbon monoxide
Chromium and carbon.
Chromium and carbon monoxide.
Chromium and carbon dioxide.
Chromium oxide and carbon.
Tags
NGSS.MS-PS1-1
NGSS.MS-PS1-2
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many silver (Ag) atoms are reactants in this equation?
¿Cuántos átomos de plata (Ag) son reactivos en esta ecuación?
1
2
3
4
Tags
NGSS.HS-PS1-7
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
In chemical reactions, a product is _________.
En las reacciones químicas, un producto es _________.
any substance that is made of the greatest number of atoms / cualquier sustancia que esté formada por el mayor número de átomos
any substance that is made from the least number of atoms / cualquier sustancia que esté formada por el menor número de átomos
any substance to the right of the arrow / cualquier sustancia a la derecha de la flecha
any substance that is to the left of the arrow / cualquier sustancia que esté a la izquierda de la flecha
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
True or False:
The arrow in a chemical reaction separate the reactants and the products.
Verdadero o falso:
La flecha en una reacción química separa los reactivos y los productos.
T
F
6.
MULTIPLE SELECT QUESTION
2 mins • 1 pt
Select ALL that are correct:
The Law of Conservation of Mass states...
Selecciona TODAS las respuestas correctas:
La Ley de Conservación de la Masa dice...
matter cannot be created or destroyed / la materia no puede ser creada ni destruida
matter can be created or destroyed / la materia puede ser creada o destruida
matter cannot be transferred / la materia no puede ser transferida
matter can be transferred / la materia puede ser transferida
Tags
NGSS.MS-PS1-5
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
How many hydrogen atoms are on each side of the equation?
¿Cuántos átomos de hidrógeno hay en cada lado de la ecuación?
2
4
6
12
Tags
NGSS.MS-PS1-5
NGSS.MS-PS1-1
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