Polarity
In the liquid we learned most about (in the polarity unit) which atom(s) is positive?
In water, hydrogen has the positive charge.
What is milk?
Milk is mainly water and fat.
Are all water molecules the same size?
No, water molecules can be all different sides.
What is the basilisk lizard also called? Why?
Jesus lizard because it can walk on water.
What is bonding between metals and nonmetal called?
This is called ionic bonding.
What is polarity?
Polarity is an effect that Happens because of the distribution of electrical charge over the atoms joined by a bond.
What do you see when you put the cue-tip covered in soap into the milk?
You will see the colors squirt out away from the cue-tip.
How do you make patterns?
You can place other cue-tips in different locations to move and mix the coloring.
What significant feature does water striders use for surface tension?
They have hairs on its legs.
How do you find the number of neutrons in an atom?
How is polarity different than an ionic compound?
Polarity is an effect that happens because of the distribution of electrical charge over the atoms joined by a bond. A ionic compound is is a compound that doesn’t have equal amounts of protons and electrons.
Why doesn’t the color mix with the milk?
It doesn’t mix because of surface tension, it sits on the top of the milk.
What kind of paper or card do you dip?
You have to dip a wet piece of paper.
Why can the insects stay on the surface?
They can stay on the surface because of distribution of very little weight and the film like surface tension that it is slightly elastic.
What is quantum physics?
Quantum physics is the part of the physics that describes the smallest things in our universe.
how does electronegativity influence polarity?
It influences polarity because if an atom has more electronegativity then polarity buts possible.
What is the soap doing on the molecular level while the colors are spreading across the milk?
The soap is breaking the surface tension, and the breaking of the surface tension is what pushed the color.
Why do you dip a wet card?
You dip a wet card because of the cohesion, adhesion and polarity. The water will stick to the other water bringing the color along with it.
How do the water striders hunt their prey?
Water striders eat small insects that fall onto the water’s surface. They locate the small insects by the feeling the vibrations the insects produce on the surface of the water.
The valen ce electrons are resisting the pull of the protons in the nucleus and need that energy to resist it.
How does polarity cause water to dissolve salt?
The water molecules separate the sodium and chloride ions. Because sodium ions have a positive charge the negative oxygen side of the water molecules fly towards it and isolates it. The same thing happens with the negatively charged chlorine ions except its the positive hydrogen side that isolates it.
How come after you try this experiment multiple times its effect becomes less dramatic?
This is because there is already soap in the milk and the surface tension has weakened and you cannot break it anymore.
Molecules are similar to____
This is because____
Magnets.
Molecules and magnets have 2 different sides, one is positive and the other is negative. With these 2 sides only opposites attract and sides that have the same charge will repel. This all applies to magnets and molecules.
How do whirligig beetles hunt their prey?
What is 99% of an atom?
99% of an atom is empty space.