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
Harrizon [31]
3 years ago
9

A sample of wax requires heat to melt and become a liquid. What type of process is this?

Chemistry
2 answers:
mixas84 [53]3 years ago
6 0

Answer:

D) Endothermic

Explanation:

An endothermic reaction absorbs heat. In this case, the wax absorbs the heat and it melts.  

Also, I took the exam and I got it right.

Ad libitum [116K]3 years ago
3 0

Answer:

Endothermic is correct

You might be interested in
A patient arrives in the emergency room with a burn caused by steam. Calculate the heat that is released when 13.3 g
Vladimir79 [104]

The heat released from the calculation is 33.56 kJ.

<h3>Heat of vaporization</h3>

The heat of vaporization is the heat absorbed when a substance changes from liquid to vapor. It is equal to the heat released when the vapor is condensed.

The total heat released = Heat of condensation + Heat lost to the skin

=  (13.3 g × 2260 J/g) + (13.3 g × 4.18 J/g/°C  × ( 100 - 37)°C)

= 30058 + 3502

= 33.56 kJ

The heat released from the calculation is 33.56 kJ.

Learn more about heat of vaporization: brainly.com/question/2427061

7 0
3 years ago
Who is known as ''The Living Lion''in nepal?
galben [10]

Answer:

The right answer is part c Amar Singh Thapa

7 0
3 years ago
Read 2 more answers
A typical virus is 5x10-6 cm in diameter. if avogadro's number of these virus particles were laid in a row, how many kilometers
Debora [2.8K]
Answer is: line be long 3,011·10¹³ kilometers.
diametar of virus = 5·10⁻⁶ cm ÷ 100000 = 5·10⁻¹¹ km.
line lenght = 5·10⁻¹¹ km · 6,023·10²³.
line lenght = 3,011·10¹³ km.
Avogadro number = 6,023·10²³.
1 cm = 10⁻² m = 10⁻⁵ km.
8 0
4 years ago
Read 2 more answers
Explain how the scientific method helps scientists.
Lapatulllka [165]

As scientists work hard for the results, they may get biased and may sometimes come up with an answer that is based on that. In order to avoid such circumstances, scientific method is put into practice.

Explanation:

  • Personal preferences can some times affect a scientific answer. That is not desirable as the experiments will be repeated by different individuals and the same results should be obtained.
  • That leads to the importance of documentation of systemic observation, formation of hypothesis and the experimentation to confirm the results, which is the scientific way of coming up with the answer to a scientific problem.
  • Scientific methods thus helps in bringing more credibility to findings of the scientists and can be repeated by others to obtain the same results.
4 0
3 years ago
Rutherford and his colleagues fired a beam of small, positively charged alpha particles at thin gold foil. Some of these alpha p
horsena [70]

C) The atom must contain some centrally located positive charge. He called this core of positive charge the nucleus.

Explanation:

Rutherford concluded from his experiment that the atom contains some centrally located positive charge. He called the core the nucleus.

Rutherford developed the nuclear model of the atom.

  • In a bid to explain his observation, Rutherford suggested the nuclear model.
  • The model consists of small positively charged center called the nucleus.
  • Nearly all the mass is concentrated in the nucleus.
  • The extranuclear space is made up of electrons orbiting the nucleus.

Learn more:

Rutherford brainly.com/question/1859083

#learnwithBrainly

7 0
3 years ago
Other questions:
  • Three students (A, B, and C) are asked to determine the volume of a sample of ethanol. Each student measures the volume three ti
    5·2 answers
  • Which of the following is an example of how science can solve social problems? It can stop excessive rain from occurring. It can
    14·2 answers
  • For a reversible reaction, what would a large equilibrium constant indicate?
    8·1 answer
  • Is carbon monoxide an element a compound a heterogeneous mixture or a homogeneous mixture?
    15·1 answer
  • Constructive interference occurs when the compression of one wave meets
    5·1 answer
  • A chemist needs 225 ml of 2.4 m hcl. What volume of 12 m hcl must be mixed with water to form this solution?
    5·1 answer
  • The height of a column of mercury in a closed-end manometer is 13.2 cm. What is the pressure of the gas in torr
    5·1 answer
  • Question 2
    11·1 answer
  • What is an example of a biotic factor in an environment?
    13·2 answers
  • Is caffeine additive?
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!