Answer:
The correct answer is - А. experiment.
Explanation:
An experiment is a type of research method used for scientific investigation to check how a natural phenomenon works and how a particular variable affected by causing or manipulating one variable.
The affected variable called the dependent variable and the variable that is changed is called the independent variable. Other than independent variables other variables should be controlled so there would be no influence on the result other than independent varibles.
2.a.The particles in the gas are moving faster than the particles in the liquid
2.b. The particles in a liquid are still connected, but the particles in a gas have separated from each other and now fly around to fill the container.
3.a. It dissolves into Hydrogen ions in water (H+).
The major difference between liquid and a gas particles of the same substance at the same temperature is that the particles in the gas are moving faster than the particles in the liquid due to distance between particles. The particles in a liquid are connected to each other, but the particles in a gas are separated from each other and moves freely in the container.
Acid forms Hydrogen ions in water (H+) and It cannot be mixed with oil due to its polarity. An acid is a molecule that donates a proton (H+) according to Bronsted–Lowry acid theory.
Learn more: brainly.com/question/24650805
Answer:
i believe nuerons
Explanation:
because they tell your brain whats happening and send messages to your other parts of you body on what to do