Chemical Equations

Chemical Equations

8th Grade

10 Qs

quiz-placeholder

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Chemical Equations

Chemical Equations

Assessment

Quiz

Chemistry

8th Grade

Practice Problem

Medium

NGSS
MS-PS1-1, HS-PS1-1

Standards-aligned

Created by

Dani Boepple

Used 3+ times

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10 questions

Show all answers

1.

CLASSIFICATION QUESTION

3 mins • 1 pt

Element or Compound?

Groups:

(a) Element

,

(b) Compound

SiO2

Fe

O2

H2O

Zn

H2

CO2

CBr4

Tags

NGSS.MS-PS1-1

2.

DRAG AND DROP QUESTION

1 min • 1 pt

Media Image

The elements in a formula are identified by their ​ (a)   .

symbols
numbers
subscripts

Tags

NGSS.MS-PS1-1

3.

DRAG AND DROP QUESTION

1 min • 1 pt

Media Image

Lowercase letters are ​ (a)   part of a 2-letter symbol.

sometimes
never
always

Tags

NGSS.HS-PS1-1

4.

DRAG AND DROP QUESTION

1 min • 1 pt

Media Image

Chemical formulas describe the number of ​ (a)   of each element in the substance.

electrons
protons
atoms

Tags

NGSS.MS-PS1-1

5.

FILL IN THE BLANK QUESTION

1 min • 1 pt

2Al + 6HCl2 ---> AlCl3 + 3H2

How many different elements are taking part in the chemical reaction shown above?

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2Al + 6HCl2 ---> AlCl3 + 3H2

How many atoms are represented in the reactants of the chemical equation that has been written above?

3

10

30

20

Tags

NGSS.MS-PS1-1

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

2Al + 6HCl2 ---> AlCl3 + 3H2

The products shown in the chemical reaction above would best be classified as –

Two elements

An element and a compound

Two compounds

A compound and a mixture

Tags

NGSS.MS-PS1-1

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