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Science(chem)

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I have a few questions I need help with!
1. Hydrogen bonding will account for the unusual physical properties of water.
TRUE
FALSE

2. Air is considered to be a homogeneous mixture that is 79% nitrogen gas, 20% oxygen gas and 1% all the other gases. In this mixture, nitrogen can be considered:
a solvent
a solute
a solution
saturated

3. Polar solids such as salt would be expected to be:
More soluble in water than in non-polar solvents.
more soluble in non-polar solvents than in water.
equally soluble in water and non-polar solvents.
none of these are true.

4. Which of the following are properties of basic solutions?
They turn the dye litmus red.
They taste sour.
They feel slippery.
They react with active metals to produce hydrogen gas.

5. Elements in Groups V - VII tend to _____ electrons in order to form ______ ions.
a) gain, positive
b) lose, positive
c) gain, negative
d) lose, negative

6. Elements in Groups I - III tend to _____ electrons in order to form ______ ions.
a) gain, positive
b) loss, positive
c) gain, negative
d) lose, negative

  • Science(chem) - ,

    You should state your thinking on the problems. We don't Do your homework for you but rather help you but you have to show what you did.

  • Science(chem) - ,

    And I'll be glad to help you after you show what you got for these questions or at least show what your thoughts on the questions you have posted.

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