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
Lady bird [3.3K]
2 years ago
14

Does it require more energy to "vaporize" water at the boiling point or to melt water at the melting point? Explain.

Chemistry
1 answer:
sveticcg [70]2 years ago
7 0

Answer:

yes I think so because more heat evaporates water

You might be interested in
Consider the reaction 2CO * O2 —> 2 CO2 what is the percent yield of carbon dioxide (MW= 44g/mol) of the reaction of 10g of c
Arturiano [62]

Answer:

Y = 62.5%

Explanation:

Hello there!

In this case, for the given chemical reaction whereby carbon dioxide is produced in excess oxygen, it is firstly necessary to calculate the theoretical yield of the former throughout the reacted 10 grams of carbon monoxide:

m_{CO_2}^{theoretical}=10gCO*\frac{1molCO}{28gCO}*\frac{2molCO_2}{2molCO}  *\frac{44gCO_2}{1molCO_2}\\\\ m_{CO_2}^{theoretical}=16gCO_2

Finally, given the actual yield of the CO2-product, we can calculate the percent yield as shown below:

Y=\frac{10g}{16g} *100\%\\\\Y=62.5\%

Best regards!

8 0
2 years ago
At STP, solid carbon can exist as graphite or as diamond. These two forms of carbon have(1) the same properties and the same cry
Umnica [9.8K]
Answer=4

Diamonds and graphite have different properties and different crystal structures.

In diamonds, the carbon atoms are arranged tetrahedrally, whereas carbon atoms are arranged in an infinite array in graphite. Graphite has a lower density than diamonds... Diamonds are the best conductor of heat that we know of... the properties differ greatly 
3 0
2 years ago
A 4.3 L gas bubble at STP is heated to 984 K, and the pressure increases to 1520 mmHg. What is the new volume?
Natalka [10]

Answer:

v2=40.35L

Explanation:

p1v1/t1=p2v2/t2

v2=t2p1v1/t1p2

v2=984*760*22.4/273.15*1520

v2=40.35 L

5 0
2 years ago
This is the chemical formula for talc (the main ingredient in talcum powder):
MAXImum [283]

Answer : 6.41 moles of silicon are in the sample.

Solution : Given,

Moles of magnesium = 9.62 moles

The given chemical formula for talc is, Mg_3Si_2O_{52}OH_2

From the given chemical formula we conclude that

The stoichiometry of magnesium and silicon is 3 : 2

3 moles of magnesium is equivalent to 2 moles of silicon

9.62 moles of magnesium will be equivalent to \frac{2}{3}\times 9.62=6.41 moles of silicon

Therefore, the number of silicon present in sample are 6.41 moles.

7 0
3 years ago
I need help on question 3
Mashcka [7]
Favorable............
7 0
2 years ago
Other questions:
  • Which chemical is the limiting reagent for the entire series of reactions? Why?
    10·2 answers
  • In addition reaction ,where does the 4 electrons of double bond end up after the reaction?
    6·1 answer
  • Which two from this group have an identical number of energy levels?
    14·1 answer
  • A line in the hydrogen spectrum occurs at 434 nm. what is the frequency of this radiation in sec -1
    10·1 answer
  • What is the pH of a solution with a concentration of 1.8 × 10-4 molar H3O+?
    7·1 answer
  • What are the units of molar mass?<br> O A. Lig<br> O B. g/mol<br> O c. g/L<br> O D. mol/g
    14·2 answers
  • 1. Calculate the heat change associated with cooling a 350.0 g aluminum bar from
    14·1 answer
  • 89.6 of H2O determine the number of moles
    8·1 answer
  • Support heat has convenient
    6·1 answer
  • Who would require more Calories to maintain their weight, and why? Person A: 6
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!