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Taya2010 [7]
2 years ago
7

What information does a solubility table give?

Chemistry
2 answers:
bekas [8.4K]2 years ago
7 0

Answer:

d

Explanation:

guajiro [1.7K]2 years ago
4 0

Answer:

Option D - It tells which compounds will dissolve in water.

Explanation:

It is used to predict whether or not a given ionic compound is soluble.

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0=4<br> Balance this equation<br> H₂sicl2+ H₂O → H8Si4O4 + HCl
zaharov [31]

Balanced Equation is

4H2SiCl2+4H2O → H8Si4O4 + 8HCl

8 0
3 years ago
A certain substance melts at a temperature of . But if a sample of is prepared with of urea dissolved in it, the sample is found
pshichka [43]

Answer:

2.2 °C/m

Explanation:

It seems the question is incomplete. However, this problem has been found in a web search, with values as follow:

" A certain substance X melts at a temperature of -9.9 °C. But if a 350 g sample of X is prepared with 31.8 g of urea (CH₄N₂O) dissolved in it, the sample is found to have a melting point of -13.2°C instead. Calculate the molal freezing point depression constant of X. Round your answer to 2 significant digits. "

So we use the formula for <em>freezing point depression</em>:

  • ΔTf = Kf * m

In this case, ΔTf = 13.2 - 9.9 = 3.3°C

m is the molality (moles solute/kg solvent)

  • 350 g X ⇒ 350/1000 = 0.35 kg X
  • 31.8 g Urea ÷ 60 g/mol = 0.53 mol Urea

Molality = 0.53 / 0.35 = 1.51 m

So now we have all the required data to <u>solve for Kf</u>:

  • ΔTf = Kf * m
  • 3.3 °C = Kf * 1.51 m
  • Kf = 2.2 °C/m
5 0
3 years ago
My Everest is the highest mountain on earth.its height is 8.848 km. Convert this height to feet. Write your answer in standard n
Vinvika [58]

Answer: 2.9(10)^{7} ft

Explanation:

Firstly we need to know that 1 km=3280.84 ft, then we cam make the conversion:

8848 km \frac{3280.84 ft}{1 km}=29,028,872.32 ft This is the height of Mount Everest in feet

However, we can express it using scientific notation by counting to the left the decimal spaces:

29,028,872.32 ft \approx 2.9(10)^{7} ft

3 0
3 years ago
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Feliz [49]
Hi! How is your day?
3 0
3 years ago
Read 2 more answers
Would you classify hydrogen as a metal or a non-metal? <br>Explain why.​
Igoryamba

Answer:

HYDROGEN IS A NON METAL.

HYDROGEN IS A GAS ELEMENT

Hydrogen is nonmetallic, except at extremely high pressures, and readily forms a single covalent bond with most nonmetallic elements, forming compounds such as water and nearly all organic compounds.

BRAINLIEST PLEASE, i really need it

5 0
2 years ago
Read 2 more answers
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