What happens to the total mass of the chemicals involved in the reaction as the reaction proceeds?
The mass decreases. After the reaction, the
solution and gas have less mass than the
baking soda and vinegar.
The mass increases. After the reaction, the
solution and gas have more mass than the
baking soda and vinegar.
The mass is the same. After the reaction, the
solution and gas have the same mass as the
baking soda and vinegar.

The return of the wolf to yellowstone national park will probably affect the bird population to some degree, not significantly. while wolves will hunt birds when necessary, they prefer to hunt larger prey. the bird population will most likely only be affected when hunting is scarce for the wolves. birds of prey will also probably not be affected as much as other birds who spend more time on the ground hunting for food as the tend to spend more time in the air or in trees since they do not need to stay on the ground for long due to the nature of the way they hunt.

Everything that you need in a lab is in your lab