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
kkurt [141]
3 years ago
5

135-g sample of a metal requires 2.50 kJ to change its temperature from 19.5 C to 100.0 C what is the specific heat of this meta

l?
Chemistry
1 answer:
Harman [31]3 years ago
3 0
The temperature increase is from 19.5 to 100 degrees centigrade or 80.5 degrees centigrade. The calorie increase is 2.50 x 1000 x 0.238902957619 or a total of 597.25 calories. 597.25/80.5 = 7.419 calories per degree centigrade. 7.419/135 grams = 0.0549 calories/gram/degree centigrade. The conversion from kilo joules involves multiplying the calories per joule x 1000 to get the number of calories in one kilo joule and then by the 2.5. 
You might be interested in
Which part of the atom is directly involved in chemical changes? A. the electron B. the energy levels C. the nucleus D. the char
7nadin3 [17]
The part of the atom that is involved in chemical changes is A. electron. The electrons that are in the most outer shells are called valence electrons which are easily removed or shared to form bonds. Valence electrons are related to the number of valence electrons
8 0
3 years ago
An unknown volume of gas has a pressure of 0.50 atm and temperature of 325 K. If the pressure is raised to 1.2 atm and the tempe
Grace [21]
You can solve this by using the equation (P1V1/T1) = (P2V2/T2). Plug in 0.50 atm for P1, leave V1 as the unknown, and plug in 325 K as T1. Then substitute 1.2 atm for P2, 48 L for V2, and 320 K for T2. Solve for V1, which is 117L, but since you round using two sig figs, your answer is C, 120 L. Hope this helps!
4 0
3 years ago
Explain why the atomic number is called the fingerprint of element
Dovator [93]

Answer:

No element shares the same atomic number. The atomic number of every element is unique to itself, just like a fingerprint is unique to a human. The atomic number of element allows us to identify it, like how we can identify a person from their fingerprint.

Explanation:

7 0
3 years ago
What is the relationship between the sun and the oceans?
zalisa [80]
The oceans store large amounts of energy
8 0
3 years ago
Which properties cause chemical reactions? Question options: chemical properties physical properties chemical and physical prope
zhuklara [117]
Chemical properties cause chemical reactions
4 0
3 years ago
Read 2 more answers
Other questions:
  • Which term names a metamorphic change in rocks over a wide area from tectonic forces in Earth's crust and mantle? A. local metam
    8·2 answers
  • What are some questions about weather
    7·2 answers
  • If the first isotope has a mass of 259.98 amu and a percent abundance of 35%, what is the percent abundance of the second isotop
    15·1 answer
  • If an object has more positive charges than negative charges, the object has an overall?
    14·1 answer
  • If I raise the Celsius scale by 15 degrees, how<br> much will I be raising it in the Kelvin Scale?
    9·1 answer
  • What is the pressure of 2.20 mol of a gas stored in a 4.5 L container at a temperature of 170 K? (Use PV=nRT and R = 8.314 L∙kPa
    9·1 answer
  • Differences between allotropy and isotopy​
    9·1 answer
  • What does “like dissolves like” mean?
    10·1 answer
  • Describe how calcium and fluorine bond together to form calcium fluoride
    7·2 answers
  • How many moles of carbon dioxide can be formed by the decomposition of 5.0 moles of aluminium carbonate
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!