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
nirvana33 [79]
3 years ago
6

I need help on 4-6 pleasee

Chemistry
1 answer:
GenaCL600 [577]3 years ago
6 0

4. It is an endothermic process. The body of someone taking a shower would be absorbing heat from the environment, another example of this would be cooking an egg

5. Ice melting is endothermic. The ice is absorbing heat from the environment, water freezing would be an exothermic reaction as it is transferring heat into the environment

6 however i do not have an answer for. I may just be a little dense but I'm not entirely sure what it is asking when it asks what the system is.

You might be interested in
Please select the word from the list that best fits the definition Has three stages - evaporation, condensation, and precipitati
Keith_Richards [23]
Evaporation, condensation, and precipitation are all parts of the water cycle. So the answer would have to be the water cycle.
5 0
3 years ago
Read 2 more answers
A scientist observed changes in the gas pressure of one mole od a grass in a sealed chamber with a fixed volume. To identify the
bixtya [17]
C. Temperature of the chamber. As temperature increases, pressure increases. As temp decreases, pressure decreases. 
8 0
3 years ago
Based on reactivity, which of the following elements can replace aluminum (Al) in a compound during a single replacement reactio
DaniilM [7]
The answer is C. You are correct
7 0
3 years ago
Which of the following would a chemist be most likely to study?
qaws [65]
B. because the other options are different sciences (biology and entomology)
5 0
3 years ago
A solution of aminoheptanoic acid, H2N-(CH2).COOH, in m-cresol at a concentration of 3.3 mol amino acid per kg of solution is po
garik1379 [7]

Explanation:

The given data is as follows.

       Concentration = 3.3 mol

      Rate constant = 2.74 \times 10^{3} kg/mol min

      Molecular weight = 55000 g/mol

      \tau = C_{A_{0}} \times \int_{0}^{X_{A}} \frac{dX_{A}}{-r_{A}}

Initial concentration (C_{A_{0}}) of aminoheptanoic is 3.3 kg/mol.

       -r_{A} = 2.74 \times 10^{3} kg/mol min

Hence, putting the given values into the above formula as follows.

    \tau = C_{A_{0}}\times \int_{0}^{X_{A}} \frac{dX_{A}}{-r_{A}}

              = \frac{3.3}{2.74 \times 10^{3} kg/mol min} [X_{A}]^{0.1}_{0}

              = 120.43 min

Thus, we can conclude that total time required to to form polyamide is 120.43 min.

3 0
3 years ago
Other questions:
  • Which compound can undergo an addition reaction?
    11·1 answer
  • To increase the electrical force between two charges by 4 times, ________________.
    10·1 answer
  • What is the mesosphere
    14·2 answers
  • In cars, ethylene glycol, C2H6O2, is used as a coolant and antifreeze. A mechanic fills a radiator with 7.1 kg of ethylene glyco
    12·2 answers
  • The mass per unit volume is substance is called
    8·2 answers
  • using a cutting board to cut raw chicken and then using the same cutting board to cut fresh fruit with only a rinse is between​
    7·1 answer
  • Do ladybugs have different numbers of spots because of gender ?
    5·2 answers
  • What's the Balance equation for:<br>_C4H10O +_ O2---&gt;_CO2+_H20​
    10·1 answer
  • 40 POINTS!! If all of the water is removed from a one-mole sample of Ba(OH)2·8H2O, by how many grams will the mass of the sample
    14·1 answer
  • Please helpppp I have a quiz tomorrow for Science and I'm having a hard time studying!!!!
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!