Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
13 Cards in this Set
- Front
- Back
|
What polarity does water have
|
polar substance
|
|
|
how is water bonding
|
covalent bonds
|
|
|
what is covalent bonding
|
share a pair of electrons or valence shells
|
|
|
In water, what is more electronegative causing it to be polar
|
the oxygen molecule is more electronegative
|
|
|
with oxygen being more electronegative and hoggin all the electrons, what charge does this give
|
negative
|
|
|
What type of substance can be dissolved in water
|
polar
|
|
|
what cannot be dissolved in water
|
nonpolar substances
|
|
|
give examples of non polar substances
|
oils and fats
|
|
|
what type of compound is water
|
amphoteric
|
|
|
what is an amphoteric compound
|
acts as a base or acid
|
|
|
bp and freexing point in water
|
100 C for boiling
0 C for freezing |
|
|
why does water have a high bp
|
because of the intermolecular hydrogen bonds
|
|
|
Give characteristics of what water is responsible for in the body
|
Major components of cells such as proteins, DNA and organelles are all dissolved in ater and the cell is filled with watery cytoplasm.
This characteristic allows molecules to be transported fluidly throughout the cell. Water's ability to conduct electrical impulses as well as it's propensity for dissolving polar substances allow the nerve cells in our brains to communicate with one another via electrical and chemical signals. Water's high heat capacity insulates our bodies from drastic temperature changes. Water's chemical and physical properties contribute to all life on Earth at the planetary, organismal, cellular, and molecular levels. |
