Question

please give scientific reasons of following statements.

1: During a chemical reaction which produces a gas, the mass of the product is different from reactants if the beaker is not covered.

2: Acids have a low pH whereas alkalis have a high pH value.
​

Answer 1

Explanation:

a project is a series of tasks that need to be completed to reach a specific outcome. A project can also be defined as a set of inputs and outputs required to achieve a particular goal. Projects can range from simple to complex and can be managed by one person or a hundred.

dani