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What else can I help you with?
Is a salt water a pure substances?
no, it's a mixture. Salt is a pure substance, as is water, but together they are a mixture.
Why does salt dissolve and sand doesn't?
Water is a polar molecule. you may have heard water being called H20. This is because it has two hydrogens (slightly positively charged) and one oxygen (slightly negatively charged) in a molecule. Salt/Sodium Chloride/NaCl is also polar and that is the reason why it dissolves in water. Sand doesnt because it is not a polar molecule, it is just crushed rock. Hope that helps!
Contrast salt water and fresh water?
Fresh and salt water are very different for one key reason, fresh water doesn't contain salt and salt water obviously does. There are different flora and fauna in fresh and salt water for this reason.
Is there more hydrogen in salt water than in fresh water?
The molecule of water remain unchanged, and also the percentage of hydrogen.
What can molecules do when dissolved in water?
Students will make a 2-D model of a salt crystal and use water molecule cut-outs to show how water dissolves salt. After seeing an animation of water dissolving.
In salt water with molecule is bigger the salt or the water?
definitly salt
Does the temperature affect the speed at whih the salt dissolves in water and why?
yes, because salt is polar molecule
Is a salt water a pure substances?
no, it's a mixture. Salt is a pure substance, as is water, but together they are a mixture.
How is fresh water different from ocean water?
Salt water has salt water in it and is bad for you, fresh water has no salt water in it and is good for you.
Why does salt water work better in the process of electrolysis?
Salt water works because electricity needs a conduit to get electrons from one place to another. Salt is a molecule that is able to do this when it is dissolved in water.
How salt water different from fresh water?
Fresh water contains no sign of salt, while on the other hand salt water contains salt
What type of substance is saltwater?
95% of Earth's water contains high concentration of salt, or high salinity
Is Every molecule of water is different from every molecule of sugar?
yes
Why does salt dissolve and sand doesn't?
Water is a polar molecule. you may have heard water being called H20. This is because it has two hydrogens (slightly positively charged) and one oxygen (slightly negatively charged) in a molecule. Salt/Sodium Chloride/NaCl is also polar and that is the reason why it dissolves in water. Sand doesnt because it is not a polar molecule, it is just crushed rock. Hope that helps!
Contrast salt water and fresh water?
Fresh and salt water are very different for one key reason, fresh water doesn't contain salt and salt water obviously does. There are different flora and fauna in fresh and salt water for this reason.
What is water when salt is dissolved in it?
The water doesn't change. However, the salt splits into an anion and a cation. Those ions become surrounded by the water, thus making them no longer visible. But the water is still just water.
In an aqueous solution of an ionic salt the oxygen atom of the water molecule is attracted to?
the partially negative charge on the oxygen atom of the salt's anion. This attraction forms hydrogen bonds between the water molecule and the anion.
