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
Brums [2.3K]
2 years ago
12

Explain why the melting point of calcium is high?

Chemistry
2 answers:
DanielleElmas [232]2 years ago
5 0
It takes more energy to breakdown the bonds
Assoli18 [71]2 years ago
3 0

Calcium has a high melting point which is about 842°C.

This is coz Calcium atoms have smaller radii since they have also a greater nuclear charge.

You might be interested in
A solution contains 6.21 g of ethylene glycol dissolved in 25.0 g of water. If water has a boiling point elevation constant of 0
timurjin [86]
Calculate first the number of moles of ethylene glycol by dividing the mass by the molar mass.
                           n = (6.21 g ethylene glycol) / 62.1 g/mol
                              n = 0.1 mol
Then, calculate the molality by dividing the number of moles by the mass of water (in kg).
                           m = 0.1 mol/ (0.025 kg) = 4m
Then, use the equation,
                       Tb,f = Tb,i + (kb)(m)
Substituting the known values,
                       Tb,f = 100°C + (0.512°C.kg/mol)(4 mol/kg)
                          <em>Tb,f = 102.048°C</em>
5 0
2 years ago
Read 2 more answers
Earth receives some of the Sun's energy in the form of heat and light.
Deffense [45]

Answer:

The sun generates energy from a process called nuclear fusion. During nuclear fusion, the high pressure and temperature in the sun's core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom. During the fusion process, radiant energy is released.

Explanation:

6 0
2 years ago
Read 2 more answers
List the five major pollutants in the United States
lawyer [7]
Fine particles, ground level ozone, sulfur dioxide, nitrogen dioxide, lead
6 0
3 years ago
Which statements describe how heat flows in foil?
LenKa [72]

Answer: c

Explanation:

8 0
2 years ago
Read 2 more answers
Smoke filling up a room is diffusion or not
maxonik [38]
Yes, because it comes from a one thing and spreads throughout the entire space. Similar to dripping foot coloring into a glass of water, or spraying air freshener.
7 0
3 years ago
Other questions:
  • Describe the contributions made by Oparin, Haldane, Miller, and Urey toward understanding the origin of organic molecules.
    7·1 answer
  • Calculate the number of moles in 15 liters of oxygen at STP.
    6·1 answer
  • A solution has a pH of 2.5. What is its [OH-] ?
    5·1 answer
  • Is the mold on bread made up of cells​
    10·1 answer
  • Practically: Add 1.66 ml of my 0.3M lemonade to a 15 ml microcentrifuge tube. Add 3.33 ml of your diluent (water, in this case)
    10·1 answer
  • A student wrote The Following hypothesis if more salt is added to a hypothesis
    11·1 answer
  • I’m completely lost on these stoichiometry problems
    7·2 answers
  • 50 pts don't dare to answer wrong or just write irrelevant.
    5·1 answer
  • Scientists are now able to use the genetic code of organisms to find out more about their evolutionary history. How is this most
    9·1 answer
  • Which of the following is an example of organic insecticides? a) Aldrin b) Lead arsenate c) Lime sulphur d) Fluorides​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!