Law of Conservation

Law of Conservation

10th - 12th Grade

15 Qs

quiz-placeholder

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Law of Conservation

Law of Conservation

Assessment

Quiz

Science, Chemistry

10th - 12th Grade

Practice Problem

Medium

NGSS
MS-PS1-5, MS-PS1-2, MS-PS1-1

Standards-aligned

Created by

Lauren Wells

Used 388+ times

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

2 mins • 12 pts

What is the Law of Conservation of mass?

Mass is created in a chemical reaction
Mass is created in a physical change
New chemicals formed from a chemical reaction have a larger overall mass than the original reactants
Mass is never created or destroyed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 

4g
5g
9g
14g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Matter can not be created nor destroyed: it can only be

Destroyed a little bit
Invisible
Transformed, changed
None of the above

Tags

NGSS.MS-PS1-5

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

If a reaction starts with a total 75g of reactants it should produce 

a total of 40g of products
a total of 75g of products
a total of 180 g of products
None of the above

Tags

NGSS.MS-PS1-5

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

In the reaction AB-----> A + B reactant AB has 12g and product B has 5g. How many grams should product A have?

17g
2g
7g
None of the above

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

6.

MULTIPLE CHOICE QUESTION

5 mins • 12 pts

In the reaction shown by the equation, 252 grams of FeCl2 and 70 grams of Clare consumed.
2FeCl2+ Cl2--> 2FeCl3 
How many grams of FeClare produced? 

161 grams
182 grams
322 grams
392 grams

Tags

NGSS.MS-PS1-5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

24 g of magnesium reacts with 38 g of fluorine to produce _____ g magnesium fluoride

62 
38
24
14

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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