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
romanna [79]
3 years ago
14

What amount of heat will raise the temperature of 78g liquid water from 20 C to 80 C?

Chemistry
1 answer:
DaniilM [7]3 years ago
3 0

Answer:

19656J

Explanation:

Step 1:

Data obtained from the question.

Mass (M) = 78g

Initial temperature (T1) = 20°C

Final temperature (T2) = 80°C

Change in temperature (ΔT) = T2 – T1 =

80°C – 20°C = 60°C

Specific heat capacity (C) = 4.2J/g°C

Heat (Q) =...?

Step 2:

Determination of the heat required for the reaction.

Q = MCΔT

Q = 78 x 4.2 x 60

Q = 19656J

Therefore, 19656J of heat is required.

You might be interested in
3.
Alecsey [184]

Answer:

<h3>no it is not allowed</h3>

Explanation:

<h3>Liwis structure shows the elements symbol with dots thet represents valance electrons ; in second row elements their atomic number is 3 up to 10 , from Li up to Ne from their electron configuration their valance electron will be from 1 up to 8 respectivelly ,if lewis structure represents the element with it is symbol and dots that represents valance electron the second row elements cannot have more than an octet of valance electrons surrounding it.</h3>

<h3>I think it is help ful for you </h3>
3 0
3 years ago
describe characteristics of different climate zones as they relate to latitude,elevation,and proximity to bodies of water. (scie
g100num [7]
They or on the southern hysteric watch it on youtube (latitude and longitude song 1 direction remix by the history teachers)
7 0
3 years ago
Compare and contrast: element, atom, isotope
blsea [12.9K]

Answer:

Element is made up of the atoms or isotopes. Isotopes are where only neutrons change in number, such as 3 turning to 2 or to 5. Atom is where it is not changed and it is the original, and example is instead of Carbon13 it is just Carbon. I hope this helps.

7 0
3 years ago
Read 2 more answers
What would you use to mesuasee the height of the tree
Zielflug [23.3K]

Answer:

if you mean "measure" you can use many things. from inches to meters. sometimes if they are big they are measured in "stories". but the smaller the unit is. the harder it is and longer it takes to measure it

7 0
3 years ago
PEOPLE WHO BUY GOODS AND SERVICES ARE OF GROUP OF DECSION MAKERS CALLED?
Bumek [7]
75% i think it is consumers
25% i think it is producer
7 0
3 years ago
Other questions:
  • The water in a 2500-L aquarium contains 1.25 g of copper. Calculate the concentration of copper in the water in ppm (remember 1
    14·1 answer
  • What is the approximate mass of iron
    15·1 answer
  • An electron in the n=6 level of the hydrogen atom relaxes to a lower energy level, emitting light of ?=93.8nm. find the principa
    7·2 answers
  • What does the foundation of the continents mostly consist of?
    10·2 answers
  • When Mrs. Green describes the physical properties of matter she said that physical properties often concern changes in state. On
    5·1 answer
  • Please help me, will mark brain whoever answers the fastest!
    6·2 answers
  • Lithium diorganocopper (Gilman) reagents are prepared by treatment of an organolithium compound with copper(I) iodide. Decide wh
    15·1 answer
  • B. The student leaves the beach because a hurricane warning comes in. In a
    13·1 answer
  • What is a object that produces heat by producing light please?
    6·2 answers
  • Scientists use the theory of plate tectonics to understand the reasons volcanoes develop in
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!