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
belka [17]
3 years ago
6

Which of the following is an endothermic process?

Chemistry
2 answers:
Neporo4naja [7]3 years ago
6 0

Hello There!

A Heat Pack is An Example Of A Endothermic Process.

An Endothermic Reaction Is A Reaction That Requires Energy To Move Forward.

Sav [38]3 years ago
4 0
<h2>Answer:</h2>

An endothermic process is <u>D. a cold pack, cooling</u>.

<h2>Explanation:</h2>

Endothermic reaction is that type of chemical reaction that requires heat from the surrounding for the reaction to occur. It basically draws heat from the environment to imitate the reaction. The process of using a cool pack for cooling is also an example of endothermic reaction as the heat is absorbed from the surrounding object by the cool pack.

Due to this heat, the ice in the cool pack begins to melt. This process is considered endothermic because the physical change in state of ice into water is not possible without the heat from the surrounding.

You might be interested in
If an electron travels at a velocity of 1.000 x 107 m/s and has a mass of 9.109 x 10-28 g, what is its wavelength?
alina1380 [7]
Good luck i don’t even know
3 0
3 years ago
determine the average volume from the following volume reading: 3.00ml, 2.0ml, 2.987 x 10^-3 l, and 3.4856 ml
lesya [120]

Answer:

The average of given values is 2.1221 ml

Explanation:

Given data:

Given measurements = 3.00 ml , 2.0 ml, 2.987 × 10⁻³ml , 3.4856 ml

Average value of given measurements = ?

Solution:

Formula:

Average value = sum of all measurement  / total number of measurements

2.987 × 10⁻³ml = 0.002987 ml

Now we will put the  values.

Average value = 3.00 ml + 2.0 ml + 0.002987 ml+ 3.4856 ml / 4

Average value = 8.488587 ml / 4

Average value =  2.1221 ml

The average of given values is 2.1221 ml

8 0
3 years ago
Is that the right answer
julsineya [31]
Is what the right answer
8 0
3 years ago
Help please! I don’t know what subject to pick this is science tho!!!!!!!!!!!!!!!
miss Akunina [59]

Answer:

C.

Explanation:

Because it decreases from October trough december

5 0
3 years ago
How many moles are 21.67 L of NH4CI?<br> Type your answer...
NNADVOKAT [17]

Answer:

0.967mole

Explanation:

Given parameters:

Volume of NH₄Cl  = 21.67L

Unknown:

Number of moles  = ?

Solution:

We assume that the volume was taken at standard temperature and pressure,

 Then;

  Number of moles  = \frac{volume }{22.4L}  

 Number of moles  = \frac{21.67}{22.4}   = 0.967mole

6 0
3 years ago
Other questions:
  • The p K a pKa of acetic acid is 4.76 . 4.76. The p K a pKa of trichloroacetic acid is 0.7 . 0.7. Calculate the equilibrium disso
    14·1 answer
  • Help with science periodic table giving brainly and thanks
    10·2 answers
  • What causes continental drift?
    15·2 answers
  • How many elements are on the Periodic Table?
    10·2 answers
  • How much 6.0 M HNO3 is needed to neutralize 39 mL of 2.0 M KOH?
    6·2 answers
  • Spell out the full name of the compounds<br> Help plz
    14·1 answer
  • Which of the following is saturated hydrocarbon?<br>1 alkyne<br>2 alkane<br>3 ethylene<br>4 alkene​
    9·2 answers
  • In a chemical equation, the sum of the masses
    14·1 answer
  • Nahco3+hc2h3o2=nac2h3o2+h2co3
    13·2 answers
  • What is melting point of impure ice ​
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!