Ok I'm not sure if this is alright, but I was hoping I might be able to have a little bit of help finding some items for a chemistry class.

 

The only one I need help with right now is:

1) A ternary compound that contains a halogen

What's a common Halogen? What ternary compound might it form?

*Cl* (**c Acid)

Edited May 16, 201015 yr by swansont
HW!

hypnotiq, this is the HW help forum. The goal here is not to see if you can answer the question, it's to get the poster to answer the question.

Sodium hypochlorite? I took a look at my bleach down in the laundry room and saw that. Does that fit? NaOCl

Sodium hypochlorite? I took a look at my bleach down in the laundry room and saw that. Does that fit? NaOCl

 

Bingo!

Ok I think I've found everything, but I'd like to check my answers...If that's ok:

 

1) 0.58 moles of Sodium Bicarbonate

A: 48.73 grams of Baking Soda

 

2) A sample of the element that requires 12 more electrons to achieve the electron configuration of the 4th period noble gas.

A: Chromium: Stainless Steel

 

3) The amount of air that would contain the exact amount of nitrogen gas that would combine with 1.0 gram of hydrogen to produce ammonia.

A: N - 78% of air so: 5.927 grams of air (after calculations)

 

4) A ternary compound that contains a halogen.

A: Bleach: Sodium hypochlorite: NaOCl

 

5) "Something" that will demonstrate the conversion of rotational energy to wave energy.

A: A fan (Fan blades rotate and you can hear the noise they make (wave energy))

 

6) Demonstrate a neutralization reaction. Write a balanced equation for the reaction.

A: Baking soda (NaHCO3 ) and vinegar (CH3COOH ): CH3COOH + NaHCO3 -> H2O + NaOCOCH3 + CO2

 

7) A homogenous mixture of a solid and a liquid.

A: Milk: solid fat globules dispersed throughout

 

8) SiO2

A: Quartz: Dendritic Quartz

 

9) A system at physical equilibrium (physical meaning different phases) that involves a solid.

A: Saturated sugar water

 

Are these all correct? Thank you for your time

7) A homogenous mixture of a solid and a liquid.

A: Milk: solid fat globules dispersed throughout

 

Nope, even homogenized milk is heterogeneous -- the fat globules are different than the aqueous part. That makes it a colloid. Also, I think the fat globules are liquid.

 

Some of the substances you already mentioned would qualify.

 

8) SiO2

A: Quartz: Dendritic Quartz

 

Correct but you can find a much easier example on the seashore.

Hmm ok, for the homogenous mixture of the solid and liquid, would salt water, or sugar water work? I was concerned that it might not, seeing as the salt/sugar is actually dissolved...

Yes, dissolved is what makes it homogeneous.