Describe the process that was used in this lab to create magnesium oxide, specifically identifying the type of chemical reaction. explain why the product had a higher mass than the reactant, and how this relates to conservation of matter.

Answer & Explanation:

1. The process that was used in the lab to create MgO:

Mg + 1/2O₂ → MgO

2. The type of the chemical reaction:

3. The reason that the product had a higher mass than the reactant:

4. The relation to the conversation of matter:

The mass of Mg  = n x molar mass of Mg = (1.0 mole) (24.30 g/mol) = 24.3 g.

The mass of O₂ =  n x molar mass of O₂ = (0.5 mole) (32.00 g/mole) = 16.0 g.

The mass of MgO  = n x molar mass of MgO = (1.0 mole) (40.30 g/mol) = 40.3 g/mol.

∴ The mass of the reactants = The mass of the products.

So, there is  a conversation of matter and mass.

the atomic number will stay the same no matter how many electrons it has, so it doesn’t decrease nor increase. it’ll only change with a different number of protons

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.