HCl +
- CaCO3 →
CaCl2 + _H20 + __ CO2

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

a compound is a molecule made of atoms from different elements.

a. by the combination of an unlimited number of elements

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

28528289 29823282 8298232 39858