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Is the following sentence true or false water molecules are polar?
True
A base is a substance that forms hydroxide ions in a water solution.?
A substance that forms hydroxide ions in a water solutoin is a base -- TRUE -- apex:)
Is dissolving oxygen gas and water a physical change or chemical change?
Dissolving in water is a physical change.
What substances are insoluble?
If an object/substance has high density, it is most likely insoluble. Insoluble substances are incapable of dissolving in water. This is true for alluminum, copper, gold, silver, iron, tin, platinum, etc. Most metals are insoluble. Strong objects are insoluble because they remain sturdy. Insoluble substances are often edible because they can dissolve on your tongue.
What is a true substance?
The one thing that is true of a substance is that it is defined as a particular type of matter that has uniform properties to it.Examples include water, carbon dioxide and table salt.
Which is true about the dissolving process in water?
Water is a polar solvent and can dissolve a polar solute; this is not an absolute rule but it is very close to truth.
Does water weather rocks gradually dissolving it?
Yes, its true.
Does water weather rock by gradually dissolving it?
Yes, its true.
Is the following sentence true or false water molecules are polar?
True
Water is a polar molecule?
Yes. The oxygen end is slightly negatively charged, and the hydrogen end is slightly positively charged.
Is it true that polar bears don't drink water?
Its true!Tey get all the liquids from the animals they eat
A base is a substance that forms hydroxide ions in a water solution.?
A substance that forms hydroxide ions in a water solutoin is a base -- TRUE -- apex:)
Is dissolving oxygen gas and water a physical change or chemical change?
Dissolving in water is a physical change.
Why is the statement Water is a solvent in any solution not always true?
Water is a polar liquid Solubility depends on "like dissolves like" That means that water can only dissolve polar substances. consider nail varnish: this won't dissolve in water because it is not polar. However, it will dissolve in acetone, which is a non-polar solvent.
Water and nonpolar molecules do not easliy mix?
Water and oil doesn't mix because the water is a polar molecule and oil is a non-polar molecule. There will always be more molecules of water than oil.
A substance that forms hydroxide ions in a water solution is a base?
True
Can a non polar solute dissolve in a polar solvent?
A polar solvent is best at dissolving polar solutes. This is because if a potential solute is non-polar, the solvent is more stable when clustering among itself. This is due to hydrogen bonds and dipole-dipole interaction generally being much more strong attractive forces than London dispersion, which is the only attractive force non-polar molecules can exhibit. It's important to understand that polar molecules also exhibit London dispersion, but that the effect of it is normally rendered insignificant by the much more powerful dipole-dipole interaction/hydrogen bonding. If a non-polar solution is added to a polar solvent, the non-polar solution will form either a separate layer or small bubble-looking clusters (called micelles). One way to force the two solutions to mix is by using a surfactant, which lowers the surface tension of a liquid. It works by attaching to a non-polar molecule with a long, non-polar chain of carbon and hydrogen atoms and attaching a polar molecule with its polar head.
