Matter Conservations Matters Quick Check
4 of 54 of 5 Items
Question
A young snake eats and digests a mouse. The increase in the snake’s mass equals(1 point)
Responses
the mass of the mouse minus the mass of waste produced by the snake.
only the mass of the mouse
the mass of the mouse plus the mass of waste produced by the snake.
the mass of the mouse plus the original mass of the snake.
the mass of the mouse plus the mass of waste produced by the snake.
Which change is chemical?
A. water freezing: liquid water becoming solid water
B. water evaporating: liquid water becoming gaseous water
C. water boiling: solid water becoming gaseous water
D. water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules <-- ✅
Which number remains unchanged during photosynthesis?
A. the number of carbon atoms <-- ✅
B. the number of carbon dioxide molecules
C. the number of glucose molecules
D. the number of water molecules
In a chemical reaction, which aspect of the reactants changes?
A. name of each element
B. nuclei
C. arrangement of the atoms <-- ✅
D. total mass
A young snake eats and digests a mouse. The increase in the snake’s mass equals
A. the mass of the mouse minus the mass of waste produced by the snake. <-- ✅
B. only the mass of the mouse
C. the mass of the mouse plus the mass of waste produced by the snake.
D. the mass of the mouse plus the original mass of the snake.
Cellular respiration transforms glucose and oxygen into carbon dioxide, water, and energy.
C6H12O6 + 6O2 → 6CO2 + ?H2O + Energy
Based on the law of conservation of matter, what is the missing coefficient for water?
6 <-- ✅
2
8
4
1. D
2. A
3. C
4. A
5. A
The increase in the snake's mass equals the mass of the mouse plus the mass of waste produced by the snake.
To determine the increase in the snake's mass after eating and digesting a mouse, we need to consider the law of conservation of mass. According to this law, mass cannot be created or destroyed, only transferred or transformed.
In this scenario, the snake eats the mouse and digests it, meaning that it breaks down the mouse's body into simpler substances that can be absorbed by the snake's digestive system. However, the total mass of the system (snake + mouse) must remain the same.
To calculate the increase in the snake's mass, we need to consider the mass of the mouse and the waste produced by the snake. The waste consists of undigested materials and other byproducts of digestion.
Therefore, the correct response is:
the mass of the mouse plus the mass of waste produced by the snake.