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
Crazy boy [7]
3 years ago
11

A sample of 250 g of water are heated from 40°C to 121°C, calculate the amount of heat energy absorbed.

Chemistry
1 answer:
Marysya12 [62]3 years ago
7 0

Answer:

the anwser isn't in the choices

Explanation:

H=MC(change of temp.)

M=mass of water=250g

C=specific heat of water = 4.186 j/g

change in temperature is 121-40= 81

H= 250x4.186x81=84766.5J

You might be interested in
A 42.0g sample of compound containing only C and H was analyzed. The results showed that the sample contained 36.0g of C and 6.0
user100 [1]

Answer:

What is the empirical formula of the compound?

Explanation:

When the relative masses of elements in a hydrocarbon are given, it is possible to use this information to obtain the empirical formula by dividing the given masses of each element by the relative atomic masses of the element. The lowest ratio is now used to divide through to obtain the empirical formula of the compound.

The empirical formula only shows that ratio of atoms of each element present in the compound. From the information provided, the empirical formula of the compound is CH2. Hence the answer.

5 0
3 years ago
Which mixture can be separated based on differences in the particle size of the components?
Rina8888 [55]

Answer: Mixtures you can separate are like cereal and milk. Hope that helps

Explanation:  Filteration is required to separate a mixture.

So heterogeneous mixures (that contain substances with different particle sizes)  can be separated with a filter.  

Homogeneous mixtures are uniform in composition so they will not be able to be separated.

5 0
3 years ago
How many moles of NaCl can be formed from 6 moles of Cl2?
salantis [7]

Answer:

12 moles

Explanation:

7 0
3 years ago
Na2SO3" represents sodium sulfite. What does the 4 mean in the formula 4Na2SO3? There are four atoms of sodium. There are four a
coldgirl [10]

The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.

A molecule is formed when two or more atoms of the same or different elements come together. The formula of the molecule must reflect the number of atoms from which it is formed. The designation "4" before Na2SO3 simply means that there are four molecules of sodium sulfite.

The "The World on Turtle's Back" is a legend creation story. According to this story, the world was created on a giant turtle back. The folktale is common among the  Iroquois Native Americans.

Learn more: brainly.com/question/19922822

7 0
2 years ago
Explain the changes in potential energy as a chemical bond forms
weqwewe [10]
Energy is released when a chemical bond forms
7 0
3 years ago
Other questions:
  • How are microchips made?
    9·2 answers
  • Within the rock cycle, a metamorphic rock could become an igneous rock by going through which steps and in what order?
    14·2 answers
  • ANSWER ASAPP<br> What is a compound?
    5·2 answers
  • Amino acids are the building blocks of proteins. The simplest amino acid is glycine (H2NCH2COOH). Draw a Lewis structure for gly
    9·1 answer
  • gastric juice (ph 1.5) is produced by pumping HCl from blood plasma (ph 7.4) into the stomach. Calculate the amount of free ener
    11·1 answer
  • What volume of 5 M NaOH is needed to create a 100 mL solution of 1 M NaOH?
    7·1 answer
  • Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 15.4 u.
    5·1 answer
  • What is the molecular shape and bond angle at the indicated carbon?
    13·1 answer
  • A sample of gas occupies a volume of 72.0 mL . As it expands, it does 141.2 J of work on its surroundings at a constant pressure
    10·1 answer
  • Question 3
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!