Question

give three ways to make sugar dissolve faster.
which is the smallest particle size: rock salt, regular salt, or finely powdered salt?
which is the largest particle size: sugar cubes, granulated sugar (regular table sugar), or powdered sugar?
which one will dissolve the fastest?
powdered sugar or granulated sugar?
in hot water or in cold water?
stirred or not stirred?
large particles or small particles?
which holds more solid solute: hot or cold liquids?
which holds more gaseous solute: hot or cold solvents?
what property of gases allows them to be pressured into solution?
do metals become positive or negative?
would a metal be attracted to waters hydrogens or oxygen?
would a nonmetal be attracted to waters hydrogens or oxygen?
to which side of a water molecule are these attracted?
magnesium
sulfur
iron
chlorine
potassium
bromine
calcium
helium
nitrogen
which is warmer: arctic water or tropical water?
which holds more oxygen: arctic water or tropical water?
when power plants use cold streams for cooling, they can kill the fish by heating up the water. why do many fish die?
why are water bugs able to \walk on water\?
how do plants get water from their roots up to their leaves?

Explanation:

Step1: List ways to speed - up sugar dissolution

1. Increase temperature: Higher - temperature water has more kinetic energy, which helps break the sugar - sugar bonds and dissolve sugar faster.
2. Stir the solution: Stirring increases the contact between sugar and water molecules, accelerating the dissolution process.
3. Decrease particle size: Powdered sugar has a larger surface - area - to - volume ratio compared to sugar cubes or granulated sugar, so it dissolves faster.

Step2: Answer particle - size questions

• Smallest salt particle size: Finely powdered salt has the smallest particle size among rock salt, regular salt, and finely powdered salt because it is the most broken down.
• Largest sugar particle size: Sugar cubes have the largest particle size among sugar cubes, granulated sugar, and powdered sugar as they are in the most aggregated form.

Step3: Determine fastest - dissolving sugar

• Powdered sugar dissolves faster than granulated sugar due to its larger surface - area - to - volume ratio.
• Sugar dissolves faster in hot water because higher temperature provides more energy for the dissolution process.
• Stirred sugar dissolves faster as stirring enhances the contact between sugar and water.
• Small particles dissolve faster as they have a greater surface area exposed to the solvent.

Step4: Solubility of solutes in solvents

• Hot liquids hold more solid solute because higher temperature generally increases the solubility of solids in liquids.
• Cold solvents hold more gaseous solute because gas solubility in liquids is inversely proportional to temperature.

Step5: Properties of gases

• Gases are compressible, which allows them to be pressured into solution.

Step6: Metal and non - metal properties

• Metals become positive as they tend to lose electrons in chemical reactions.
• Metals are attracted to the oxygen side of a water molecule because oxygen has a partial negative charge due to its higher electronegativity. Non - metals are generally attracted to the hydrogen side of a water molecule as hydrogen has a partial positive charge.
• Magnesium, iron, potassium, calcium are attracted to the oxygen side of the water molecule. Sulfur, chlorine, bromine, helium, nitrogen are attracted to the hydrogen side (though the interaction of noble gases like helium with water is very weak).

Step7: Water temperature and oxygen content

• Tropical water is warmer than arctic water.
• Arctic water holds more oxygen because gas solubility in water is higher at lower temperatures.

Step8: Fish death in power - plant cooling

• Many fish die when power plants heat up cold streams because the decrease in oxygen solubility in warmer water leads to oxygen depletion, and fish need oxygen to survive.

Step9: Water bugs and plants

• Water bugs can "walk on water" due to surface tension, which is caused by the cohesive forces between water molecules.
• Plants get water from their roots to their leaves through capillary action, which is due to the combined forces of adhesion (water - plant cell wall attraction) and cohesion (water - water molecule attraction).

Answer:

1. Three ways to make sugar dissolve faster: Increase temperature, stir the solution, decrease particle size.
2. Smallest salt particle size: Finely powdered salt.
3. Largest sugar particle size: Sugar cubes.
4. Fastest - dissolving sugar: Powdered sugar, in hot water, when stirred, small particles.
5. Solubility: Hot liquids hold more solid solute; cold solvents hold more gaseous solute.
6. Gas property: Compressibility.
7. Metals become positive; metals are attracted to oxygen side of water, non - metals to hydrogen side. Specific element - water molecule side attractions as described above.
8. Warmer water: Tropical water. More oxygen - holding water: Arctic water.
9. Fish die due to oxygen depletion from water heating.
10. Water bugs "walk on water" due to surface tension. Plants get water from roots to leaves by capillary action.