Answer:
If temperature is held constant, the equation is reduced to Boyle's law. Therefore, if you decrease the pressure of a fixed amount of gas, its volume will increase. ... Gay-Lussac's law states that at constant volume, the pressure and temperature of a gas are directly proportional.
Explanation:
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The scientific method usage, as a result.
Answer:
The result was that H₂SO₄ is a strong electrolyte, NH₃ is a weak electrolyte and sugar is a non-electrolyte.
Explanation:
The experiment will show that the H₂SO₄ solution will light the lightbulb brightly, the NH₃ solution will light it weakly and the sugar solution will not light it at all.
This happens because to light the lightbulb we need free charges moving in the solution. Therefore, the substance that produce more ions will be the best electrolyte.
H₂SO₄ → 2H⁺ + SO₄²⁻
NH₃ + H₂O → NH₄⁺ + OH⁻
Sugar will not generate ions
The compound that will have the lowest freezing point when dissolved in water is 1.0M Mg(NO3)2. That is option 3.
<h3>Comparing the freezing point of solutions</h3>
To compare the freezing points of solution, the total concentration of all the particles when solutes are dissolved in water is determined.
This is an important step to consider because, the greater the concentration of particles, the lower the freezing point will be.
To determine the concentration of all the particles, ionic compounds are alway 2 while covalent compounds are always 1.
- 1.0M NaCl: This compound is ionic (metal with nonmetal), and will dissolve into 2 parts. The total final concentration is (1m)(2)=2m
- 1M NaOH: This compound is ionic and will dissolve into 2 parts. The total final concentration is (1m)(2)=2m.
- 1.0M Mg(NO3)2: This is an ionic compound but contains a polyatomic ions. The total final concentration is 1m(3) = 3m.
- 2M NH3: This is a covalent compound and will remain in a part. The total final concentration is 2m (1)= 2m.
Therefore, since 1.0M Mg(NO3)2 contains the greater concentration of particles, it has lower freezing point.
Learn more about freezing point here:
brainly.com/question/24314907
An independent variable<span> is the </span>variable<span> that is changed or controlled in a scientific </span>experiment<span> to test the effects on the </span>dependent variable<span>. </span>