water properties help please!!!!!!!11?

Question

1.-Water gains and loses energy ________________.
quickly
slowly
violently
instantly
rapidly

2.- Water in its solid state compared to liquid water is:
Denser
Less dense
As dense
Can’t be determined
Warmer

3.-Water cannot be found as a pure substance on earth because:
it is made up of two atoms of hydrogen and one of oxygen.
it can be solid, liquid or gas.
it has salts, gases and other substances dissolved in it.
it is a non-polar molecule.
it is found as saltwater.

4.- Chemical bond responsible for water's high surface tension, low vapor pressure, high specific heat capacity, high heat of vaporization, and high boiling point
Covalent bond
Ionic bond
Hydrogen bond.
Disulfide bond.
None of the above

5.- A water molecule has several important properties due to its:
non-polarity
temperature
pressure
electrons
polarity

Answer 1

1 slowly because it has a high specific heat
2 less dense at normal temperatures (remember ice floats)
3 has salts, gases, etc because it is a great solvent
4 probably ionic (but not disulfide or covalent)
5 polarity

Answer 2

1. hint H2O cools slow and heats slow
2. hint: ice takes up more space then water does,but it the same amount of matter
3. hint it's the universal solvent (most things dissolve in it)
4. hint:of the three what works on surface tension? covalent and Ionic bonds work inside one atom/Hydrogen bond act between atoms/for a disulfide bond you need a sulfide.
5. hint for hydrogen bonds you need polarity

Answer 3

Electronegative Polarity Water has a partial negative charge (σ-) near the oxygen atom due to the unshared pairs of electrons, and partial positive charges (σ+) near the hydrogen atoms. In water, this happens because the oxygen atom is more electronegative than the hydrogen atoms — that is, it has a stronger "pulling power" on the molecule's electrons, drawing them closer (along with their negative charge) and making the area around the oxygen atom more negative than the area around both of the hydrogen atoms.

Answer 4

slowly
less dense
it has salts, gases and other substances dissolved in it
hydrogen bond
polarity

hope theses answers help