8.5E Lesson
Presentation
•
Science
•
8th Grade
•
Medium
Bryanda Cortez
Used 6+ times
FREE Resource
3 Slides • 5 Questions
1
8.5E Law of Conservation of Mass
Balanced or Not?
2
Multiple Choice
An experiment calls for a chemical with the formula NH3. How many atoms of each element are in the formula?
0 nitrogen atoms, 3 hydrogen atoms
1 nitrogen atom, 1 hydrogen atom
1 nitrogen atom, 3 hydrogen atoms
3 nitrogen atoms, 3 hydrogen atoms
3
Multiple Choice
A substance called "cream of tartar" is sometimes used in baking. The formula for cream of tartar is KC4H5O6. What is the total number of atoms shown in the formula?
16
15
6
4
4
Multiple Choice
5
Multiple Choice
6
Multiple Choice
A student notices that sugar heated over a flame turns black. How does the student know that a new substance is being formed?
The sugar melts within the test tube
The temperature of the test tube increases
The color of the sugar changes to black
The mass of the sugar decreases
7
8
8.5E Law of Conservation of Mass
Balanced or Not?
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