Conservation of Mass Counting Atoms

Presentation

•

Science

•

8th Grade

•

Hard

Joseph Anderson

FREE Resource

12 Slides • 11 Questions

LET'S PRACTICE COUNTING ATOMS IN CHEMICAL FORMULAS- USE WHITEBOARDS or PAPER

COUNTING ATOMS IN CHEMICAL EQUATION

https://youtu.be/uJgNTeBWhDk?feature=shared

GLOW STICK- WRITE A CLAIM OF WHAT's HAPPENING WHEN IT BREAKS?

BAKING SODA + VINEGAR ------- explain product

Multiple Choice

Suppose you have 15g of baking soda and mix it with 15g of vinegar. When they are combined they bubble and fizz a lot. The final solution has a mass of 25g. What happened to the "lost" 5g?

it dissappears

it is still there just not weighted

it is in the gas that is formed

nothing happened

Multiple Choice

If reaction starts with 20g of reactants it should produce

a total of 40g of products

a total of 10g of products

a total of 80 g of products

a total of 20g of products

Multiple Choice

If 20g of sugar is stirred into a beaker containing 100g of water. What would the mass of the dissolved solution be after the sugar is dissolved fully?

20g

100g

80g

120g

Multiple Choice

Which are the reactants in the following reaction?
2Mg + O₂ ---> 2MgO

Mg and O

MgO

Mg and MgO

O and MgO

Multiple Choice

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

14g

Multiple Choice

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

14g

Multiple Choice

How many nitrogen atoms does NH₃ have?

Multiple Choice

How many oxygen atoms are in this chemical formula?

6 oxygen atoms

2 oxygen atoms

3 oxygen atoms

4 oxygen atoms

Multiple Choice

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

Multiple Choice

What is the law of conservation of mass?

The amount of matter changes when reacted or changed.

The mass of all reactants are changed during a physical or chemical change

The mass of the reactants equals the mass of the products

The mass of the products is different than the mass of the reactants.

Multiple Choice

When CaCO₃ is heated, it forms CaO and CO₂. Which of these statements best describes the mass of the products if 100 g of CaCO₃ is heated?

The difference in the products’ masses is equal to the mass of the CaCO₃

The sum of the products’ masses is less than the mass of the CaCO₃

The mass of each product is equal to the mass of the CaCO₃

The sum of the products’ masses equals the mass of the CaCO₃

Show answer

Auto Play

Slide 1 / 23

SLIDE

Similar Resources on Wayground

16 questions

Newton's First Law of Motion...

Presentation

•

8th Grade

16 questions

8.7 c tides

Presentation

•

8th Grade

19 questions

Rockets and Satellites

Presentation

•

8th Grade

15 questions

Magnets

Presentation

•

8th Grade

19 questions

Why Earth's Tilt Matters

Presentation

•

8th Grade

20 questions

Biotechnology

Presentation

•

8th Grade

20 questions

Newton's Laws Extended Day

Presentation

•

8th Grade

20 questions

Light-years and the Milky Way Galaxy

Presentation

•

8th Grade

Popular Resources on Wayground

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

10 questions

HCS SCI 03 Summer School Review 3

Quiz

•

3rd Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

15 questions

HCS SCI 05 Summer School Assessment 3 Review

Quiz

•

5th Grade

35 questions

Lufkin Road Middle School Student Handbook & Policies Assessment

Quiz

•

7th Grade

18 questions

Geo 11.3 Area of Circles and Sectors

Quiz

•

9th - 11th Grade

Discover more resources for Science

24 questions

PBIS-HGMS Day 10

Quiz

•

6th - 8th Grade

11 questions

Home Scope

Quiz

•

7th - 8th Grade

Conservation of Mass Counting Atoms

​LET'S PRACTICE COUNTING ATOMS IN CHEMICAL FORMULAS- USE WHITEBOARDS or PAPER

​COUNTING ATOMS IN CHEMICAL EQUATION

​https://youtu.be/uJgNTeBWhDk?feature=shared

​GLOW STICK- WRITE A CLAIM OF WHAT's HAPPENING WHEN IT BREAKS?

​BAKING SODA + VINEGAR ------- explain product

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science

LET'S PRACTICE COUNTING ATOMS IN CHEMICAL FORMULAS- USE WHITEBOARDS or PAPER

COUNTING ATOMS IN CHEMICAL EQUATION

https://youtu.be/uJgNTeBWhDk?feature=shared

GLOW STICK- WRITE A CLAIM OF WHAT's HAPPENING WHEN IT BREAKS?

BAKING SODA + VINEGAR ------- explain product