Chemistry, 31.07.2019 08:20 bsept1018

So…what's the deal with water? hydrogen bonds? why so important? list some of the important properties of water.

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Answer from: ghostboy2001

Yes water has 2 hydrogen atoms and one oxygen atom, with single bonds connecting the 2 hydrogen atoms to the oxygen atom.

Water is so important because it is important for sustain all life- plant life, human life, animal life (especially fish and marine animals). Without water we just can't live! If there wasn't any water, then plants wouldn't be able to grow, and so we would not be able to eat fruits, veggies, or other plant foods. And if plants arent available, animals we need couldn't live, and so basically without water we'd starve. Furthermore, our bodies need water to function- like making blood and other fluids (like saliva and sweat). Our bodies cannot go without water!

Come important properties of water include:
- its attraction to polar molecules: if water didn't have this property, then it would not be able to be a liquid at normal temperatures (which is VITAL for life)

- its high polarity: this allows it to be the great solvent that it is.

- low density of ice (water's solid form): water, unlike other liquids, is less dense as a solid than as a liquid. This is why ice floats on water instead of sinking.

- can exist in solid,liquid, or gas form on Earth: this is extremely important for us as humans for life, but also for weather (water vapor/clouds as gas form) and keeping lots of earth's water in a place (glaciers as solid ice) which is important to prevent BIG floods

Answer from: Quest

1.consider the following balanced equation and answer parts a through. show calculations for each part.

3 ag(s) + 4 hno3(aq) → 3 agno3(aq) + no(g) + 2 h2o(l)

a. calculate the number of moles of agno3 produced by the reaction of 3 moles of ag with excess hno3. if the number to the left of the compound represents the number of moles of the compound which are present, then 3 moles of ag react with 4 moles hno3 to produce 3 moles agno3 (aq).

so the answer to a would be 3 moles.

b. calculate the number of moles of agno3 produced by the reaction of 108 grams of ag with excess hno3.

i'm not sure how to plug in the grams of silver into an equation using moles to find how many moles are produced.

c. calculate the number of grams of agno3 produced by the reaction of 108 grams of ag with excess hno3

d. calculate the number of moles of no produced as a byproduct of the reaction of 108 grams of ag with excess hno3.

e. calculate the number of grams of no produced as a byproduct starting with 108 grams of ag and excess hno3.

explanation:

Answer from: Quest

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So…what's the deal with water? hydrogen bonds? why so important? list some of the important prope...

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