Marco wants to investigate the chemical properties of sodium bicarbonate, or baking soda. He plans to carry out the tests below. Test 1: Mix a teaspoon of sodium bicarbonate into a cup of warm water to see if it dissolves. Test 2: Mix a teaspoon of sodium bicarbonate into a cup of vinegar to see if it fizzes. Test 3: Heat a teaspoon of sodium bicarbonate in the oven to see if its melting point is less than 400 degrees Fahrenheit. Which statement provides the best assessment of his tests?

Test 2: Mix a teaspoon of sodium bicarbonate into a cup of vinegar to see if it fizzes.

Explanation:

The statement that provides the best assessment would be the test in which a teaspoon mix of the substance with vinegar is tested for fizzleness.

The test was an investigation of the chemical test of the compound. By definition, a chemical test is one in which a qualitative or quantitative procedure is used to identify, characterize, or quantify a chemical group.

In this case, a mix of sodium carbonate and vinegar will produce a fizzle of carbon dioxide gas. This is a characteristic test for compounds with carbonates. The equation is as below:

What a model shows is  a practical solution for some research by showing systems that have different sizes. Models are simplified representations of real objects/systems . you can make it easier  by zooming on a large system. You can also do something else to make it easier.