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
Hatshy [7]
3 years ago
9

How many calories are required to raise the temperature of 105 g of water from 30.0°C to 70.0°C?

Chemistry
1 answer:
BartSMP [9]3 years ago
5 0
There  number of   calories that are  required to  raise  the  temperature  of  105 g  of  water  from  30.0  c  to 70.0  c  is calculated as  follows

Q(heat)=  mass(m) x  specific heat  capacity  of   water ( 1 cal/g/c)  x  delta T ( change  in  temperature

delta T = 70.0-  30.0=   40.0 c

Q=   105 g x 1 cal/g/c  x  40 c = 4200 calories   is  needed to  raise  temperature  of  water from 30 c   to  70 c
You might be interested in
Balance the following chemical equation by providing the correct coefficients.
sukhopar [10]

Answer:

2Na+2H2O→2NaOH+H2

Explanation:

I think this is it

7 0
3 years ago
1-Bromopropane is treated with each of the following reagents. Draw the major substitution product if the reaction proceeds in g
sammy [17]

Answer:

Explanation:

If we look at the structure of 1-Bromopropane; we will see that it is a derivative of alkane family by the the substitution of an alkyl group. The position of the Bromine in the propane is 1, making 1-Bromopropane  a primary alkyl-halide.

Primary alkyl - halide undergo SN2 mechanism. This nucleophilic reaction needs to be a strong alkyl halide , such as 1-Bromopropane used  otherwise it will result to a reactive mechanism if a weak electrophile is used.

However, the critical and the main objective here is to Draw the major substitution product if the reaction proceeds in good yield. If no reaction is expected or yields will be poor, draw the starting material in the box. If a charged product is formed, be sure to draw the counterion.

The attached diagrams portraying this notions is shown in the attached file below.

5 0
3 years ago
Graciella divided her grapes equally among 6 friends. If each friend received 16 grapes how many grapes did Graciella have?
DIA [1.3K]

Answer: She had 96 grapes.

Explanation:

3 0
3 years ago
Read 2 more answers
How many elements does a compound need to form?
Vinvika [58]

Answer:

two

Explanation:

When two distinct elements are chemically combined, chemical bonds form between their atoms. the result is called a chemical compound

4 0
3 years ago
Read 2 more answers
PLEASE HELP ASAP I EILL GIVE 100 POINTS!!! Kristy is on the track team. She runs the one kilometer race by going four times arou
qaws [65]

Answer:A

Explanation:

5 0
3 years ago
Other questions:
  • Based on the data given, which factor had the greatest effect on the behavior of the gas
    12·1 answer
  • _______ rock can be changed directly into _______ rock with the application of heat and pressure.
    8·1 answer
  • (7th grade science question)
    14·1 answer
  • True or false<br> sugar melting an example of oxidation<br> and <br> water evaporating
    15·1 answer
  • Please help me, im studying for finals and i need an answer to this question! Will mark brainliest for the best answers!w
    13·2 answers
  • 100 points to the person who can answer these 4 questions
    14·1 answer
  • Look at the dots around each symbol and the energy levels from the resources above;
    15·1 answer
  • How TO DO THIS QUESTION PLEASE PLEASEEEEEEEEEeeeeeeeeeeeeeeeeeeee​
    9·1 answer
  • Chemical bonding in metals is
    9·1 answer
  • HELPPPPPP 30 POINTS Scientists are currently debating if a new epoch based on modern human activity should be added to the geolo
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!