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malfutka [58]
3 years ago
9

A chemical reaction in which one element replaces another element in a compound can be categorized as?

Chemistry
1 answer:
alexira [117]3 years ago
4 0
Replacement reaction
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During the phase change from solid ice to liquid water, which bonds/forces are being weakened?
kvasek [131]
INTERmolecular forces (such as dipoles and London dispersion forces).

The actually compound isn't changing (it's still H2O in solid or liquid form), so INTRAmolecular bonds aren't being affected. It's just the strength of attraction between separate molecules that is weakening.
5 0
3 years ago
A sample of gas is placed into an enclosed cylinder and fitted with a movable piston. Calculate the work (in joules) done by the
Nuetrik [128]

Explanation:

here is the answer. Feel free to ask for more chem help

6 0
3 years ago
Calculate how many grams of sodium hypochlorite can be theoretically formed when 1.23 mol of sodium hydroxide is combined with 1
elixir [45]

Answer:

45.78 g NaClO

Explanation:

The reaction that takes place is:

  • 2NaOH + Cl₂ → NaCl + NaClO + H₂O

In order to react completely, 1.36 moles of chlorine would require (2*1.36) 2.72 moles of NaOH. There are more moles than that, so NaOH is the limiting reactant.

We <u>calculate the moles of NaClO formed</u>, from the limiting reactant:

  • 1.23 mol NaOH * \frac{1molNaClO}{2molNaOH} = 0.615 mol NaClO

Finally we <u>convert NaClO moles to grams</u>, using its <em>molecular weight</em>:

  • 0.615 mol NaClO * 74.44 g/mol = 45.78 g NaClO
8 0
3 years ago
Calculate the molality of a 5.51 M ethanol (C2H5OH) solution whose density is 0.9349 g/mL
bearhunter [10]

Molality of C2H5OH is 1.1.27m.



What is Molality?

Molality is no.of moles present in One Kg solution .

Molality is represented by m

m= no.of moles/ weigt of solution in kg

Given is Molarity= 51.30M

molar mass of C2H5OH is 46g / mol , Density =0.9349g/ ml

Density=m/V

V = 107 ml

Molarity= no of moles/ Volume

51.5×46×107= x × 1000

weight of C2H5OH = 27.7g

molality = 27.7/1000××46

m= 1.27m

to learn more about Molality click brainly.com/question/20380670

#SPJ9

5 0
2 years ago
a 75.0 liter canister contains 15.82 moles of argon at a pressure of 546.8 kilopascals. What is the temperature of the canister?
abruzzese [7]

Pressure of argon = 546.8 kPa

Conversion factor: 1 atm = 101.325 kPa

Pressure of argon = 546.8 kPa x 1 atm/101.325 kPa = 5.4 atm

Moles of argon = 15.82

Volume of argon = 75.0 L

According to Ideal gas law,

PV = nRT

where P is the pressure, V is the volume , n is the number of moles, R is the universal gas constant, and T is the temperature

T = PV/nR = (5.4 atm x 75.0 L) / (15.82 x 0.0821 L.atm.mol⁻¹K⁻¹)

T = 311.82 K

Hence the temperature of the canister is 311.82 K.

4 0
3 years ago
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