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aliya0001 [1]
3 years ago
9

Difference between melting point and melting range

Chemistry
1 answer:
Rudik [331]3 years ago
5 0
The temperature at which a given solid will melt is called melting point.

The melting range is the span of temperature from the point at which the crystals first begin to liquefy to the point at which the entire sample is liquid.
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Natalia dipped two feathers in oil. Then she dipped one feather in cold water and the other feather in hot water. She swirled bo
Alika [10]

Answer:

The hot water was better for removing the oil.

Explanation:

You can see that because the mass went down more with the hot water. So, that means that more oil was taken out of the feather with hot water.

8 0
2 years ago
Help and show work please
olya-2409 [2.1K]
ANWERS ~
We know that :
1 cal (th) = 4.184 J
1 J = 0.2390057361 cal (th) , so :

•55.2 j to cal > 13.193116635 cal
•110 call > 460.24 joule
•65 kj > divide the energy value by 4.184
= 15.535 kilocalories calorie (IT)
——————
Converting form C to F > (F-32)*5/9Understand it better if we have Fahrenheit just add to the equation mentioned to find Celsius.
+to find F to C> (9/5*C)+32

•425 Fahrenheit = (425- 32) × 5/9 =218.33333333 Celsius

•1935 C = 3515 F
———————————-
Converting Celsius to kelvin,We know that :
K = C + 273.15
C = K - 273.15
And from F to K=9/5(F+459.67)
And K to F =(9/5 *k)-459.67
•39.4 Celsius = 312.55 kelvin
•337 Fahrenheit = (337+ 459.67) × 5/9 =442.594 kelvin





4 0
3 years ago
Draw the isotopic notation for an element with 15 protons, 18 neutrons and 18 electrons
tatiyna

Answer:

can't be done

Explanation:

protons and electrons always are the same number,and the neutrons are found by subtracting the atomic mass and protons/electrons soooooooo it can't have 15 protons, 18 electrons, and 18 neutrons.......i hope this helped if not please tell me.

5 0
3 years ago
What element behaves MOST like magnesium <br> between Si, S, Sr, Sn
frosja888 [35]

<u><em>Answer</em></u>

  • Sr

<u><em>Explanation</em></u>

  • In periodic table, the elements have almost same properties are present in the same group. As Mg and Sr are present in group II-A, so both behave most likely to each other due to having same valence shell electrons as well.
  • Si and Sn are present in group IV-A which have same behavior but different one from Mg due to different groups.
  • S is present in group VI-A which show different properties from all others one especially from Mg.
6 0
3 years ago
Read 2 more answers
What is one similarity between radiation and conduction
WINSTONCH [101]

Answer:

They have to all have to do with the movement/transfer of heat.

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3 years ago
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