1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
aleksandr82 [10.1K]
3 years ago
15

Due in minutes! Please Help Solve!

Chemistry
1 answer:
stiks02 [169]3 years ago
5 0
Step by step equation
You might be interested in
Choose the substance with the lowest viscosity. choose the substance with the lowest viscosity. f2chchf2 f2chch2f fch2ch2f f3cch
Maksim231197 [3]

Answer : FCH_{2}CH_{2}F

Explanation : In the molecule of FCH_{2}CH_{2}F  the hydrogen bonding forces tend to resist any phase transition form liquid state to gaseous phase, and these hydrogen bonding forces are greater  usually when the hydrogen is bound to an electronegative atom like chlorine, fluorine,oxygen,etc. This then lowers the viscosity of the compound.

7 0
3 years ago
Read 2 more answers
Calculate the heat change in calories for melting 65 g of ice at 0 ∘c.
Genrish500 [490]

When ice melts, the physicals state changes from solid to liquid. The energy or the heat required (q) required to change a unit mass (m) of a substance from solid to liquid is known as the enthalpy or heat of fusion (ΔHf). The variables; q, m and ΔHf are related as:

q = m * ΔHf

the mass of ice m = 65 g

the heat of fusion of water at 0C = ΔHf = 334 J/g

Therefore: q = 65 g * 334 J/g = 21710 J

Now:

4.184 J = 1 cal

which implies that: 21710 J = 1 cal * 21710 J/4.184 J = 5188.8 cal

Hence the heat required is 5188.8 cal or 5.2 Kcal (approx)

5 0
3 years ago
50 points!! Brainliest if correct!!
Luda [366]

The answer is C. The answer is C because if u increase the surface area, the more reactants u will get. and if u get more The reactants will move faster. Hoped that Helped!:-)

4 0
3 years ago
How is the atomic mass of an atom calculated?
azamat
Adding the number of protons by the number of neutrons
8 0
2 years ago
How many molecules are contained in 0.800 mol o2?
Ksenya-84 [330]
Multiply .800 moles of O2 by Avagadro's number divided by 1 mole. This will get rid of the moles on the bottom and leave you with molecules. So technically .800 times 6.02x10^23.
6 0
3 years ago
Other questions:
  • What characteristics do scientists use to distinguish between organisms in different kingdoms
    14·1 answer
  • Please help me ASAP!!!
    12·1 answer
  • A 67.2 g sample of a gold and palladium alloy contains 3.28×1023 atoms .
    12·1 answer
  • Calculate the kinetic energy (in joules) of a mole of water molecules traveling at 11.7 m/s.
    8·2 answers
  • Which sample contains the greatest number of moles of cl? which sample contains the greatest number of moles of ? 3.8 mol hcl 4.
    8·1 answer
  • What mean hoax and thanks ❤❤❤​
    15·2 answers
  • What does the prefix cis- mean in chemistry
    7·2 answers
  • A-potassium<br>B-lead<br>C-iron<br>D-magnesium<br>E-zinc<br>​
    15·1 answer
  • What is the value for AG at 100 K if AH = 27 kJ/mol and AS = 0.09 kJ/mol.K)?
    9·1 answer
  • What kind of bond is present in HCI
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!