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3 years ago

24 POINTS!!!!!!!!!!!!!!!!!!!!!!!!!!!

Chemistry

2 answers:

erastovalidia [21]3 years ago

6 0

I'd say b, but i'm not 100 percent sure.

Oksana_A [137]3 years ago

6 0

I would say D, because it did not say you are just starting the flight. If it did, then it would be B, because you need to speed up and you are going upwards. It said you are going in the same amount of speed, and of course, if you are going in the same speed, you can't make time pass faster or slower. So, if it was me, I would choose D as an answer.

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A geochemist in the field takes a small sample of the crystals of mineral compound X from a rock pool lined with more crystals o

dedylja [7]

Answer:

1. No, you cannot calculate the solubility of X in water at 26ºC.

Explanation:

You cannot calculate the solubility of X in water at 26 degrees Celsius because you do not know whether the solution formed by dissolving the crystals in 3.00 liters of water is saturaed or not.

The only way to determine the solubility of the compound X is by dissolving the crystals in certain (measured) amount of water and making sure that some crystals remain undissolved, as a solid on the bottom of the beaker.

Next, you should filter the solution to remove the undissolved crystals. Then, weigh the solution, evaporate, wash, dry, and weigh the crystals.

Then you have the mass of the crystals dissolved and the mass of the solution which will let you calculate the mass of pure water, and then the solubility.

3 0

3 years ago

What is Centripetal force?

makvit [3.9K]

A. A force that acts on a body moving in a circular path

6 0

3 years ago

Explain why hydrogen can only have 2 valence electrons around it when it bonds to other items. What is the maximum number of bon

lys-0071 [83]

Answer:

In first shell only 2 electrons are present in hydrogen only one electron is present in valence shell. To complete its duplet hydrogen can share lose or gain only one electron to form chemical bond.

Hydrogen can form only one bond.

Explanation:

7 0

3 years ago

How many liters of N2 gas is needed to produce 500 L NH3?

Veseljchak [2.6K]

I think the answer is 101.2 L

6 0

3 years ago

Nitrogen monoxide and hydrogen react to form nitrogen and water, like this: 2NO+2 H2(g)-N29)+2H2O(9) Write the pressure equilibr

lara31 [8.8K]

Answer:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)² = Kp

Explanation:

The reaction is:

2NO + 2H₂ → N₂ + 2H₂O

The expression for Kp (pressure equilibrium constant) would be:

Partial pressure N₂ . (Partial pressure H₂O)² / (Partial pressure H₂)² . (Partial pressure NO)²

There is another expression for Kp, where you work with Kc (equilibrium constant)

Kp = Kc (R.T)^Δn

where R is the Ideal Gases constant

T° is absolute temperature

Δn = moles of gases formed - moles of gases, I had initially

4 0

3 years ago